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                                                                                                  1. Home
                                                                                                  2. Circuit Protection
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                                                                                                  Circuit Protection

                                                                                                  (222)

                                                                                                • Thermistors (184)
                                                                                                • ESD Protection Devices (23)
                                                                                                • Surge Protectors (6)
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                                                                                                  AL-FFFF-9
                                                                                                  L-COM AL-FFFF-9
                                                                                                  23T4256

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  L-COM
                                                                                                  1. Coaxial Surge Protector
                                                                                                  2. Coaxial
                                                                                                  3. 75 ohm
                                                                                                  4. Panel
                                                                                                  5. 1 Pole
                                                                                                  Each
                                                                                                  1+
                                                                                                  $76.300
                                                                                                  -
                                                                                                  75ohm
                                                                                                  Data Line
                                                                                                  Panel
                                                                                                  -
                                                                                                  1 Pole
                                                                                                  AL6-NFNFBW-9
                                                                                                  L-COM AL6-NFNFBW-9
                                                                                                  47T1289

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  L-COM
                                                                                                  1. Coaxial Surge Protector
                                                                                                  2. Coaxial
                                                                                                  3. 50 ohm
                                                                                                  4. Panel / Chassis
                                                                                                  5. 1 Pole
                                                                                                  Each
                                                                                                  1+
                                                                                                  $121.770
                                                                                                  -
                                                                                                  50ohm
                                                                                                  Coaxial
                                                                                                  Panel / Chassis
                                                                                                  -
                                                                                                  1 Pole
                                                                                                  AL-TMTFB-9
                                                                                                  L-COM AL-TMTFB-9
                                                                                                  23T4272

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  L-COM
                                                                                                  1. Coaxial Surge Protector
                                                                                                  2. Coaxial
                                                                                                  3. 5 kA
                                                                                                  4. 50 ohm
                                                                                                  5. Panel
                                                                                                  6. 1 Pole
                                                                                                  Each
                                                                                                  1+
                                                                                                  $88.180
                                                                                                  5kA
                                                                                                  50ohm
                                                                                                  Data Line
                                                                                                  Panel
                                                                                                  -
                                                                                                  1 Pole
                                                                                                  RCLAMP3304N.TCT
                                                                                                  SEMTECH RCLAMP3304N.TCT
                                                                                                  79R2295

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  SEMTECH
                                                                                                  1. ESD Protection Device
                                                                                                  2. 18 V
                                                                                                  3. SLP2626P10
                                                                                                  4. 10 Pins
                                                                                                  5. 3.3 V
                                                                                                  6. 450 W
                                                                                                  7. RailClamp Series
                                                                                                  Each (Supplied on Cut Tape)
                                                                                                  Cut Tape
                                                                                                  1+
                                                                                                  $2.630
                                                                                                  25+
                                                                                                  $1.730
                                                                                                  50+
                                                                                                  $1.430
                                                                                                  100+
                                                                                                  $1.140
                                                                                                  250+
                                                                                                  $1.050
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  RailClamp Series
                                                                                                  -
                                                                                                  RF1252-000
                                                                                                  LITTELFUSE RF1252-000
                                                                                                  34AC4961

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch LVR Series
                                                                                                  4. 240 V
                                                                                                  5. 80 mA
                                                                                                  6. 190 mA
                                                                                                  7. 10 s
                                                                                                  8. Round
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.130
                                                                                                  10+
                                                                                                  $0.846
                                                                                                  25+
                                                                                                  $0.740
                                                                                                  50+
                                                                                                  $0.633
                                                                                                  100+
                                                                                                  $0.583
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch LVR Series
                                                                                                  -
                                                                                                  RF2707-000
                                                                                                  LITTELFUSE RF2707-000
                                                                                                  34AC5333

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RXEF Series
                                                                                                  4. 72 V
                                                                                                  5. 3 A
                                                                                                  6. 6 A
                                                                                                  7. 19.8 s
                                                                                                  8. Round
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.480
                                                                                                  10+
                                                                                                  $1.170
                                                                                                  25+
                                                                                                  $1.080
                                                                                                  50+
                                                                                                  $0.992
                                                                                                  100+
                                                                                                  $0.892
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RXEF Series
                                                                                                  -
                                                                                                  RF1246-000
                                                                                                  LITTELFUSE RF1246-000
                                                                                                  81AH9177

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. PPTC RESETTABLE FUSE
                                                                                                  2. 20A
                                                                                                  3. 120V
                                                                                                  4. RADIAL ROHS COMPLIANT: YES
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.130
                                                                                                  10+
                                                                                                  $0.886
                                                                                                  25+
                                                                                                  $0.760
                                                                                                  50+
                                                                                                  $0.634
                                                                                                  100+
                                                                                                  $0.551
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch LVR Series
                                                                                                  -
                                                                                                  RF3102-000
                                                                                                  LITTELFUSE RF3102-000
                                                                                                  81AH9186

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. PPTC RESETTABLE FUSE
                                                                                                  2. 40A
                                                                                                  3. 24VDC
                                                                                                  4. 2920 ROHS COMPLIANT: YES
                                                                                                  Each (Supplied on Cut Tape)
                                                                                                  Cut Tape
                                                                                                  1+
                                                                                                  $0.705
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch SMDC Series
                                                                                                  -
                                                                                                  RF3122-000
                                                                                                  LITTELFUSE RF3122-000
                                                                                                  34AC5424

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Battery Strap PTC
                                                                                                  2. PolySwitch VTP Series
                                                                                                  3. 16 VDC
                                                                                                  4. 2.1 A
                                                                                                  5. 4.7 A
                                                                                                  6. 5 s
                                                                                                  7. 100 A
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.460
                                                                                                  10+
                                                                                                  $0.894
                                                                                                  25+
                                                                                                  $0.853
                                                                                                  50+
                                                                                                  $0.810
                                                                                                  100+
                                                                                                  $0.789
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch VTP Series
                                                                                                  -
                                                                                                  RF0067-000
                                                                                                  LITTELFUSE RF0067-000
                                                                                                  81AH9176

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. PPTC RESETTABLE FUSE
                                                                                                  2. 2A
                                                                                                  3. 240VAC
                                                                                                  4. RADIAL ROHS COMPLIANT: YES
                                                                                                  Each (Supplied on Cut Tape)
                                                                                                  Cut Tape
                                                                                                  1+
                                                                                                  $1.330
                                                                                                  10+
                                                                                                  $1.140
                                                                                                  50+
                                                                                                  $1.030
                                                                                                  100+
                                                                                                  $0.928
                                                                                                  250+
                                                                                                  $0.871
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch LVR Series
                                                                                                  -
                                                                                                  RF3376-000
                                                                                                  LITTELFUSE RF3376-000
                                                                                                  34AC5573

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RKEF Series
                                                                                                  4. 60 VDC
                                                                                                  5. 3.75 A
                                                                                                  6. 7.5 A
                                                                                                  7. 22 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.080
                                                                                                  10+
                                                                                                  $0.855
                                                                                                  25+
                                                                                                  $0.791
                                                                                                  50+
                                                                                                  $0.726
                                                                                                  100+
                                                                                                  $0.654
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RKEF Series
                                                                                                  -
                                                                                                  RF0318-000
                                                                                                  LITTELFUSE RF0318-000
                                                                                                  03M5129

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. POLYSWITCH
                                                                                                  2. SMD
                                                                                                  3. 1.1A
                                                                                                  Each (Supplied on Cut Tape)
                                                                                                  Cut Tape
                                                                                                  1+
                                                                                                  $0.732
                                                                                                  10+
                                                                                                  $0.693
                                                                                                  25+
                                                                                                  $0.644
                                                                                                  50+
                                                                                                  $0.596
                                                                                                  100+
                                                                                                  $0.510
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch SMD Series
                                                                                                  -
                                                                                                  RF2639-000
                                                                                                  LITTELFUSE RF2639-000
                                                                                                  26M2705

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. POLYSWITCH
                                                                                                  2. RADIAL
                                                                                                  3. 0.9A
                                                                                                  Each
                                                                                                  1+
                                                                                                  $0.602
                                                                                                  10+
                                                                                                  $0.473
                                                                                                  25+
                                                                                                  $0.438
                                                                                                  50+
                                                                                                  $0.404
                                                                                                  100+
                                                                                                  $0.377
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RUEF
                                                                                                  -
                                                                                                  RF1547-000
                                                                                                  LITTELFUSE RF1547-000
                                                                                                  34AC5023

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Battery Strap PTC
                                                                                                  2. PolySwitch LR4 Series
                                                                                                  3. 20 VDC
                                                                                                  4. 7.3 A
                                                                                                  5. 14.1 A
                                                                                                  6. 5 s
                                                                                                  7. 100 A
                                                                                                  Each
                                                                                                  1+
                                                                                                  $2.360
                                                                                                  10+
                                                                                                  $1.320
                                                                                                  25+
                                                                                                  $1.300
                                                                                                  50+
                                                                                                  $1.290
                                                                                                  100+
                                                                                                  $1.220
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch LR4 Series
                                                                                                  -
                                                                                                  RF2705-000
                                                                                                  LITTELFUSE RF2705-000
                                                                                                  34AC5331

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RXEF Series
                                                                                                  4. 72 V
                                                                                                  5. 1.85 A
                                                                                                  6. 3.7 A
                                                                                                  7. 12.6 s
                                                                                                  8. Round
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.050
                                                                                                  10+
                                                                                                  $0.763
                                                                                                  25+
                                                                                                  $0.687
                                                                                                  50+
                                                                                                  $0.613
                                                                                                  100+
                                                                                                  $0.531
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RXEF Series
                                                                                                  -
                                                                                                  RF3305-000
                                                                                                  LITTELFUSE RF3305-000
                                                                                                  34AC5514

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RHEF Series
                                                                                                  4. 16 VDC
                                                                                                  5. 4 A
                                                                                                  6. 7.5 A
                                                                                                  7. 5 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.200
                                                                                                  10+
                                                                                                  $0.855
                                                                                                  25+
                                                                                                  $0.755
                                                                                                  50+
                                                                                                  $0.656
                                                                                                  100+
                                                                                                  $0.596
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RHEF Series
                                                                                                  -
                                                                                                  RF3321-000
                                                                                                  LITTELFUSE RF3321-000
                                                                                                  34AC5524

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RHEF Series
                                                                                                  4. 16 VDC
                                                                                                  5. 10 A
                                                                                                  6. 18.5 A
                                                                                                  7. 9 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.740
                                                                                                  10+
                                                                                                  $1.390
                                                                                                  25+
                                                                                                  $1.280
                                                                                                  50+
                                                                                                  $1.180
                                                                                                  100+
                                                                                                  $1.060
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RHEF Series
                                                                                                  -
                                                                                                  RF3378-000
                                                                                                  LITTELFUSE RF3378-000
                                                                                                  34AC5575

                                                                                                  RoHS

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RKEF Series
                                                                                                  4. 60 VDC
                                                                                                  5. 5 A
                                                                                                  6. 10 A
                                                                                                  7. 28 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.980
                                                                                                  10+
                                                                                                  $1.560
                                                                                                  25+
                                                                                                  $1.520
                                                                                                  50+
                                                                                                  $1.480
                                                                                                  100+
                                                                                                  $1.270
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RKEF Series
                                                                                                  -
                                                                                                  RF3386-000
                                                                                                  LITTELFUSE RF3386-000
                                                                                                  34AC5582

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RUSBF Series
                                                                                                  4. 6 V
                                                                                                  5. 1.2 A
                                                                                                  6. 2 A
                                                                                                  7. 0.5 s
                                                                                                  8. Round
                                                                                                  Each
                                                                                                  1+
                                                                                                  $0.868
                                                                                                  10+
                                                                                                  $0.636
                                                                                                  25+
                                                                                                  $0.572
                                                                                                  50+
                                                                                                  $0.510
                                                                                                  100+
                                                                                                  $0.443
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RUSBF Series
                                                                                                  -
                                                                                                  RF3398-000
                                                                                                  LITTELFUSE RF3398-000
                                                                                                  34AC5594

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RUSBF Series
                                                                                                  4. 16 VDC
                                                                                                  5. 2.5 A
                                                                                                  6. 5 A
                                                                                                  7. 40 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $0.963
                                                                                                  10+
                                                                                                  $0.655
                                                                                                  25+
                                                                                                  $0.619
                                                                                                  50+
                                                                                                  $0.583
                                                                                                  100+
                                                                                                  $0.514
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RUSBF Series
                                                                                                  -
                                                                                                  RF4127-000
                                                                                                  LITTELFUSE RF4127-000
                                                                                                  34AC5653

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch 2Pro Series
                                                                                                  4. 260 VDC
                                                                                                  5. 150 mA
                                                                                                  6. 300 mA
                                                                                                  7. 3 s
                                                                                                  8. Round
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.690
                                                                                                  10+
                                                                                                  $1.340
                                                                                                  25+
                                                                                                  $1.240
                                                                                                  50+
                                                                                                  $1.140
                                                                                                  100+
                                                                                                  $1.030
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch 2Pro Series
                                                                                                  -
                                                                                                  RF2682-000
                                                                                                  LITTELFUSE RF2682-000
                                                                                                  34AC5313

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RXEF Series
                                                                                                  4. 72 V
                                                                                                  5. 900 mA
                                                                                                  6. 1.8 A
                                                                                                  7. 7.2 s
                                                                                                  8. Round
                                                                                                  Each
                                                                                                  1+
                                                                                                  $0.805
                                                                                                  10+
                                                                                                  $0.589
                                                                                                  25+
                                                                                                  $0.531
                                                                                                  50+
                                                                                                  $0.473
                                                                                                  100+
                                                                                                  $0.410
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RXEF Series
                                                                                                  -
                                                                                                  RF3177-000
                                                                                                  LITTELFUSE RF3177-000
                                                                                                  34AC5432

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch LVR Series
                                                                                                  4. 240 VAC
                                                                                                  5. 2 A
                                                                                                  6. 4 A
                                                                                                  7. 28 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $3.020
                                                                                                  25+
                                                                                                  $2.320
                                                                                                  100+
                                                                                                  $2.000
                                                                                                  250+
                                                                                                  $1.600
                                                                                                  500+
                                                                                                  $1.520
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch LVR Series
                                                                                                  -
                                                                                                  RF3054-000
                                                                                                  LITTELFUSE RF3054-000
                                                                                                  34AC5416

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RKEF Series
                                                                                                  4. 60 VDC
                                                                                                  5. 500 mA
                                                                                                  6. 1 A
                                                                                                  7. 0.8 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $0.760
                                                                                                  10+
                                                                                                  $0.515
                                                                                                  25+
                                                                                                  $0.484
                                                                                                  50+
                                                                                                  $0.454
                                                                                                  100+
                                                                                                  $0.423
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RKEF Series
                                                                                                  -
                                                                                                  RF3370-000
                                                                                                  LITTELFUSE RF3370-000
                                                                                                  34AC5567

                                                                                                  Data Sheet

                                                                                                  RoHS

                                                                                                  Date/Lot Code

                                                                                                  LITTELFUSE
                                                                                                  1. Resettable Fuse
                                                                                                  2. PPTC
                                                                                                  3. PolySwitch RKEF Series
                                                                                                  4. 60 VDC
                                                                                                  5. 1.6 A
                                                                                                  6. 3.2 A
                                                                                                  7. 9 s
                                                                                                  8. Rectangular
                                                                                                  Each
                                                                                                  1+
                                                                                                  $1.120
                                                                                                  10+
                                                                                                  $0.751
                                                                                                  25+
                                                                                                  $0.657
                                                                                                  50+
                                                                                                  $0.562
                                                                                                  100+
                                                                                                  $0.520
                                                                                                  More Pricing...
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  -
                                                                                                  PolySwitch RKEF Series
                                                                                                  -
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