Noise Suppression & Safety Capacitors

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We supply a wide range of Noise Suppression & Safety Capacitors to Delta, X1, X2, Y1 and Y2 suppression classes

What is a noise suppression safety capacitor?

Class-X and Class-Y noise suppression safety capacitors are safety-certified and generally designed and used in AC line filtering in many electronic device applications. These safety capacitors are also known by other names, including EMI/RFI suppression capacitors and AC line filter safety capacitors. (EMI stands for electromagnetic interference and RFI stands for radio-frequency interference; RFI is simply higher-frequency EMI.)

What does a noise suppression capacitor do?

For these capacitors to perform their EMI/RFI filtering tasks, they are directly connected to the AC line and neutral power input. And because of this direct connection to the AC voltage, the capacitors may be subjected to overvoltages and/or voltage transients—lightning strikes, power surges. Thus, capacitor failure is a very real possibility.

When a Class-X capacitor, also referred to as an "across the line capacitor"—the capacitor placed between line and neutral—fails because of an overvoltage event, it is likely to fail short. This failure, in turn, would cause an overcurrent protective device, like a fuse or circuit breaker, to open. Therefore, a capacitor failing in this fashion would not cause any electrical shock hazards.

If a Class-Y capacitor, also known as the "line to ground capacitor" or "the line bypass capacitor"—the capacitor placed between line and ground—fails short, this could lead to a fatal electric shock due to the loss of the ground connection. Class-Y safety capacitors are designed to fail open. A failure will cause your electronic device to be subjected to the noise and interference that the capacitor would normally filter out, but at least there will be no fatal electric shock hazard.

 
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PMR209MC6100M100R30
PMR209MC6100M100R30 - Safety Capacitor, Metallized Paper, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole

69K0980

Safety Capacitor, Metallized Paper, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole

KEMET

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Metallized Paper Radial Box - 2 Pin 0.1µF ± 20% X2 Through Hole 250VAC - - - - GRADE II (Test Condition A) 20.3mm - -40°C 85°C PMR209 Series - - -
BFC233820473
BFC233820473 - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.047 µF, ± 20%, X2, Through Hole

96B2289

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.047 µF, ± 20%, X2, Through Hole

VISHAY

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Metallized PP Radial Box - 2 Pin 0.047µF ± 20% X2 Through Hole 310VAC - 600V/µs - - GRADE II (Test Condition A) 7.5mm - -55°C 105°C MKP3382 Series - - -
PME271Y510MR30
PME271Y510MR30 - FILM CAPACITOR, 0.01UF, 1 kV, 20%, RADIAL

26M1971

FILM CAPACITOR, 0.01UF, 1 kV, 20%, RADIAL

KEMET

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Metallized Paper Radial Box - 2 Pin 10000pF ± 20% Y2 Through Hole - 250VAC 1.4kV/µs - - GRADE II (Test Condition A) 15.2mm - -40°C 100°C PME271Y/P271 Series - - -
BFC233922225
BFC233922225 - CAP, 2.2µF, 20%, PP

53M6789

CAP, 2.2µF, 20%, PP

VISHAY

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Metallized PP Radial Box - 2 Pin 2.2µF ± 20% X2 Through Hole 310VAC - 100V/µs - - GRADE II (Test Condition A) 27.5mm - -55°C 110°C MKP339 AEC-Q200 - -
R46KR433050M2K
R46KR433050M2K - Film Capacitor, R46 Series, 3.3 F, 10%, PP (Polypropylene), 275 VAC RoHS Compliant: Yes

50P8623

Film Capacitor, R46 Series, 3.3 F, 10%, PP (Polypropylene), 275 VAC RoHS Compliant: Yes

KEMET

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Metallized PP Radial Box - 2 Pin 3.3µF ± 10% X2 Through Hole 275VAC - 150V/µs - - GRADE II (Test Condition A) 27.5mm - -40°C 110°C R46 Series - - -
B32922C3104M000
B32922C3104M000 - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole

96K7503

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole

EPCOS

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Metallized PP Radial Box - 2 Pin - - - Through Hole 305VAC - 340V/µs - - GRADE II (Test Condition A) - - - - - - - -
BFC233820472
BFC233820472 - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 4700 pF, ± 20%, X2, Through Hole

96B2288

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 4700 pF, ± 20%, X2, Through Hole

VISHAY

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Metallized PP Radial Box - 2 Pin 4700pF ± 20% X2 Through Hole 310VAC - 600V/µs - - GRADE II (Test Condition A) 7.5mm - -55°C 105°C MKP3382 Series - - -
224MKP275KB
224MKP275KB - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.22 µF, ± 10%, X2, Through Hole

30K6661

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.22 µF, ± 10%, X2, Through Hole

CORNELL DUBILIER

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Metallized PP Radial Box - 2 Pin 0.22µF ± 10% X2 Through Hole 310VAC - 300V/µs - - GRADE II (Test Condition A) 15mm - -40°C 110°C MKP Series - - -
BFC233820335
BFC233820335 - CAP, 3.3µF, 20%, PP

98K6939

CAP, 3.3µF, 20%, PP

VISHAY

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Metallized PP Radial Box - 2 Pin 3.3µF ± 20% X2 Through Hole 310VAC - 100V/µs - - GRADE II (Test Condition A) 27.5mm - -55°C 105°C MKP3382 - - -
PHE850EB5470MB14R17
PHE850EB5470MB14R17 - CAP, 0.047µF, 20%, PP, RADIAL

31Y3417

CAP, 0.047µF, 20%, PP, RADIAL

KEMET

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Metallized PP Radial Box - 2 Pin 47000pF ± 20% Y2 Through Hole - 300VAC 100V/µs - - GRADE II (Test Condition A) 15mm - -55°C 110°C PHE850/F850 Series - - -
PME271M610MR30
PME271M610MR30 - Safety Capacitor, Metallized Paper, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole

11N7706

Safety Capacitor, Metallized Paper, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole

KEMET

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Metallized Paper Radial Box - 2 Pin 0.1µF ± 20% X2 Through Hole 275VAC - 600V/µs - - GRADE II (Test Condition A) 24mm - -40°C 110°C PME271M/P276 Series - - -
B32922D3334K000
B32922D3334K000 - CAP, 0.33µF, 10%, PP

42Y0134

CAP, 0.33µF, 10%, PP

EPCOS

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Metallized PP Radial Box - 2 Pin 0.33µF ± 10% X2 Through Hole 305VAC - 340V/µs - - GRADE II (Test Condition A) 15mm - -40°C 110°C B32922 - - -
B32924C3565M000
B32924C3565M000 - CAP, 5.6µF, 20%, PP

14AC3435

CAP, 5.6µF, 20%, PP

EPCOS

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Metallized PP Radial Box - 2 Pin 5.6µF ± 20% X2 Through Hole 305VAC - 120V/µs - - GRADE II (Test Condition A) 27.5mm - -40°C 110°C B32924 - - -
B32021A3222M189
B32021A3222M189 - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, Y2, Through Hole

80Y2240

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, Y2, Through Hole

EPCOS

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Metallized PP Radial Box - 2 Pin - - - Through Hole -VAC 300VAC 800V/µs - - - 10mm - -40°C - - - - -
ECQ-UBAF222MA
ECQ-UBAF222MA - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, X1 / Y2, Through Hole

91AH9999

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, X1 / Y2, Through Hole

PANASONIC

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Metallized PP Radial Box - 2 Pin 2200pF ± 20% X1 / Y2 Through Hole 300VAC 300VAC - - - GRADE II (Test Condition B) 12.5mm - -40°C 110°C ECQUB Series - - -
ECQUBAF104V2
ECQUBAF104V2 - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 20%, X1, Through Hole

91AH9954

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 20%, X1, Through Hole

PANASONIC

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Metallized PP Radial Box - 2 Pin 0.1µF ± 20% X1 Through Hole 300VAC - - - - GRADE II (Test Condition B) 12.5mm - -40°C 110°C ECQUB Series - - -
ECQUAAV684S1
ECQUAAV684S1 - SAFETY CAP, 0.68UF, X2, 310V, RADIAL ROHS COMPLIANT: YES

13AJ5722

SAFETY CAP, 0.68UF, X2, 310V, RADIAL ROHS COMPLIANT: YES

PANASONIC

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Metallized PP Radial Box - 2 Pin 0.68µF ± 20% X2 Through Hole 310VAC - - - - GRADE III (Test Condition B) 22.5mm - -40°C 110°C ECQUA AEC-Q200 - -
R46KN3680JBM2M
R46KN3680JBM2M - SUPPRESSION CAP, 0.68UF, X2, 275V ROHS COMPLIANT: YES

69AH2092

SUPPRESSION CAP, 0.68UF, X2, 275V ROHS COMPLIANT: YES

KEMET

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Metallized PP Radial Box - 2 Pin 0.68µF ± 20% X2 Through Hole 275VAC - 200V/µs - - GRADE II (Test Condition A) 22.5mm - -40°C 110°C R46 Series - - -
B32924A4474M000
B32924A4474M000 - CAP, 0.47UF, CLASS X2, 350V, RAD ROHS COMPLIANT: YES

82AH6989

CAP, 0.47UF, CLASS X2, 350V, RAD ROHS COMPLIANT: YES

EPCOS

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Metallized PP Radial Box - 2 Pin 0.47µF ± 20% X2 Through Hole 305VAC - 80V/µs - - GRADE II (Test Condition A) 27.5mm - -40°C 110°C B32924 AEC-Q200 - -
ECQUBAF474M
ECQUBAF474M - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.47 µF, ± 20%, X1, Through Hole

92AH0071

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.47 µF, ± 20%, X1, Through Hole

PANASONIC

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Metallized PP Radial Box - 2 Pin 0.47µF ± 20% X1 Through Hole 300VAC - - - - GRADE II (Test Condition B) 22.5mm - -40°C 110°C ECQUB Series - - -
R46KI347000M1M
R46KI347000M1M - SUPPRESSION CAP, 0.47UF, X2, 275V ROHS COMPLIANT: YES

69AH2085

SUPPRESSION CAP, 0.47UF, X2, 275V ROHS COMPLIANT: YES

KEMET

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Metallized PP Radial Box - 2 Pin 0.47µF ± 20% X2 Through Hole 275VAC - 400V/µs - - GRADE II (Test Condition A) 15mm - -40°C 110°C R46 Series - - -
B32926C3685K000
B32926C3685K000 - CAP, 6.8UF, CLASS X2, 305V, RAD ROHS COMPLIANT: YES

82AH6992

CAP, 6.8UF, CLASS X2, 305V, RAD ROHS COMPLIANT: YES

EPCOS

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Metallized PP Radial Box - 2 Pin 6.8µF ± 10% X2 Through Hole 305VAC - 80V/µs - - GRADE II (Test Condition A) 37.5mm - -40°C 110°C B32926 - - -
R463I310040M1M
R463I310040M1M - SUPPRESSION CAP, 0.1UF, X2, 310V,RAD ROHS COMPLIANT: YES

66AH0059

SUPPRESSION CAP, 0.1UF, X2, 310V,RAD ROHS COMPLIANT: YES

KEMET

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Metallized PP Radial Box - 2 Pin 0.1µF ± 20% X2 Through Hole 310VAC - 400V/µs - - GRADE II (Test Condition A) 15mm - -40°C 110°C R46 Series - - -
ECQUAAF104KA
ECQUAAF104KA - SUPPRESSION CAP, 0.1UF, CLASS X2, 275V ROHS COMPLIANT: YES

65AH6248

SUPPRESSION CAP, 0.1UF, CLASS X2, 275V ROHS COMPLIANT: YES

PANASONIC

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Metallized PP Radial Box - 2 Pin 0.1µF ± 10% X2 Through Hole 275VAC - - - - GRADE III (Test Condition B) 15mm - -40°C 110°C ECQUA AEC-Q200 - -
ECQ-UBAF222M
ECQ-UBAF222M - Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, X1 / Y2, Through Hole

91AH9998

Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, X1 / Y2, Through Hole

PANASONIC

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Metallized PP Radial Box - 2 Pin 2200pF ± 20% X1 / Y2 Through Hole 300VAC 300VAC - - - GRADE II (Test Condition B) 12.5mm - -40°C 110°C ECQUB Series - - -