RF Filters:

197 Products Found
We offer RF filters for aircraft, aerospace, medical, power plant control, traffic signal, transportation equipment and a wide range of other applications.Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). This frequency range is used by most broadcast radio, television, and wireless communication equipment (mobile phones, Wi-Fi, etc.).Accordingly, most RF and microwave devices will include some kind of filtering on the signals transmitted or received. Such filters are commonly used as building blocks for duplexers and diplexers to combine or separate multiple frequency bands.

What does an RF filter do?

Filters fulfil one of the following functions:
  1. RF band-pass filter: selects only a desired band of frequencies
  2. RF band-stop filter: eliminates an undesired band of frequencies
  3. RF low-pass filter: allows only frequencies below a cutoff frequency to pass
  4. RF high-pass filter: allows only frequencies above a cutoff frequency to pass

RF Filter types

There are many different types or models for RF filters. Below are some of the more commonly used forms.Constant-k: The constant-k filter’s advantage lies in the ease of calculating values for the various components. This enables it to be simply designed with minimal theoretical knowledge about the mathematics, unlike many other filters. However, its performance does not quite match that of other filter types, although for many applications it is more than adequate.Butterworth: This type of filter provides the maximum in band flatness, although it provides a lower stop-band attenuation than a Chebyshev filter. However, it is also able to provide better group delay performance, and hence lower overshoot.Bessel: This filter provides the optimum in-band phase response and therefore also provides the best step response. It is often used where signals incorporate square waves, etc as the shape is maintained best of all.Chebyshev: This filter provides fast roll off after the cut off frequency is reached. However, this is at the expense of in-band ripple. The more in-band ripple that can be tolerated, the faster the roll off.Elliptic: This filter, also known as the Cauer filter, has significant levels of in-band and out of band ripple, and as expected the higher the degree of ripple that can be tolerated, the steeper it reaches its ultimate roll off.
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03AH2647

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.225
10+
$0.206
25+
$0.206
50+
$0.206
100+
$0.206
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Min: 1 / Mult: 1
Low Pass
6Pins
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2.4GHz to 2.5GHz
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Bluetooth
WLCSP
-
75AJ2939

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$2.110
10+
$2.010
25+
$2.000
50+
$1.850
100+
$1.730
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Min: 1 / Mult: 1
Band Pass
4Pins
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2.4GHz to 2.5GHz
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RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-BPF Series
75AJ2935

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.120
10+
$2.820
25+
$2.670
50+
$2.510
100+
$2.220
Min: 1 / Mult: 1
Low Pass
8Pins
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908MHz to 928MHz
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RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF Series
44W4474

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JOHANSON TECHNOLOGY
Each (Supplied on Cut Tape)
Cut Tape
1+
$0.587
10+
$0.401
25+
$0.376
50+
$0.351
100+
$0.326
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Min: 5 / Mult: 5
Band Pass
4Pins
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2.4GHz to 2.5GHz
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-
0805 [2012 Metric]
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66AH5019

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.486
25+
$0.446
50+
$0.446
100+
$0.446
250+
$0.412
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Min: 1 / Mult: 1
Band Pass
4Pins
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3.3GHz to 3.9GHz
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Cellular, WLAN, Bluetooth, Zigbee, ISM, RF/Microwave, Millimeter Wave, Fiber Optic
0805 [2012 Metric]
-
29AJ5142

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.363
10+
$0.303
25+
$0.285
50+
$0.272
100+
$0.260
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Min: 5 / Mult: 5
Band Pass
3Pins
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2.4GHz to 2.5GHz
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Bluetooth, WLAN
0603 [1608 Metric]
DEA Series
69AH1370

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.383
10+
$0.298
25+
$0.294
50+
$0.290
100+
$0.286
More Pricing...
Min: 5 / Mult: 5
Low Pass
-
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2.4GHz ~ 2.5GHz
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Bluetooth 5, IEEE 802.15.4, OpenThread, Optimized for STM32WB55Vx, Zigbee
CSP
-
75AJ2937

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.720
Min: 10 / Mult: 10
Low Pass
8Pins
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5.15GHz to 5.875GHz
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RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF Series
75AJ2938

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.340
Min: 1 / Mult: 1
Low Pass
8Pins
-
2.4GHz to 2.5GHz
-
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF Series
29AJ5136

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.295
10+
$0.253
25+
$0.241
50+
$0.228
100+
$0.216
More Pricing...
Min: 5 / Mult: 5
Low Pass
4Pins
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698MHZ to 960MHZ
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GSM, LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
75AJ2936

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.420
Min: 1 / Mult: 1
Low Pass
6Pins
-
2.4GHz to 2.5GHz
-
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0603 [1608 Metric]
WE-LPF Series
36AJ3162

RoHS

Each
1+
$26.680
Min: 1 / Mult: 1
Band Pass
-
-
2.4GHz to 2.5GHz
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UAV/Drone Antennas
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Airvu Series
36AJ3163

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Each
1+
$22.220
Min: 1 / Mult: 1
Band Pass
-
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5.48GHz to 5.85GHz
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UAV/Drone Antennas
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Airvu Series
65AH7962

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.168
10+
$0.120
25+
$0.115
50+
$0.110
100+
$0.105
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Min: 5 / Mult: 5
LC
2Pins
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2.4GHz ~ 2.5GHz
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Aircraft, Aerospace, Medical, Power Plant Control, Traffic Signal & Transportation Equipment
01005 [0402 Metric]
LQZ02HQ Series
81AH9716

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.640
10+
$1.570
25+
$1.510
50+
$1.450
100+
$1.350
Min: 1 / Mult: 1
Band Pass
-
-
2.4GHz to 2.5GHz
-
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
1008 [2520 Metric]
WE-BPF Series
81AH9717

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.020
10+
$0.979
25+
$0.975
50+
$0.937
100+
$0.894
More Pricing...
Min: 1 / Mult: 1
-
-
-
2.4GHz to 2.5GHz
-
Wireless Communication Systems Like Home RF, DECT, WLAN, Bluetooth, ZigBee
0805 [2012 Metric]
WE-BAL Series
44W4468

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JOHANSON TECHNOLOGY
Each (Supplied on Cut Tape)
Cut Tape
1+
$1.060
10+
$0.739
25+
$0.688
50+
$0.639
100+
$0.588
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Min: 1 / Mult: 1
Low Pass
8Pins
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858MHz to 878MHz
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-
0805 [2012 Metric]
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69AC6043

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Date/Lot Code

Each
1+
$0.667
10+
$0.660
25+
$0.657
50+
$0.657
100+
$0.656
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Min: 1 / Mult: 1
-
10Pins
-
891.5 MHz
-
ZigBee
0805 [2012 Metric]
LFD Series
66AH5022

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Date/Lot Code

JOHANSON TECHNOLOGY
Each (Supplied on Cut Tape)
Cut Tape
1+
$0.138
25+
$0.138
50+
$0.138
100+
$0.138
250+
$0.138
More Pricing...
Min: 1 / Mult: 1
Band Pass
4Pins
-
4.4GHz to 5GHz
-
Cellular, WLAN, Bluetooth, Zigbee, ISM, RF/Microwave, Millimeter Wave, Fiber Optic
0603 [1608 Metric]
-
29AJ5138

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.295
10+
$0.253
25+
$0.241
50+
$0.228
100+
$0.216
More Pricing...
Min: 5 / Mult: 5
Low Pass
6Pins
-
1.4279GHz to 2.17GHz
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LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
29AJ5144

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.316
10+
$0.253
25+
$0.241
50+
$0.234
100+
$0.228
More Pricing...
Min: 5 / Mult: 5
Low Pass
4Pins
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673MHz to 2.69GHz
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GSM, LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
29AJ5145

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.295
10+
$0.253
25+
$0.241
50+
$0.228
100+
$0.216
More Pricing...
Min: 5 / Mult: 5
Low Pass
4Pins
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1.71GHz to 2.69GHz
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LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
29AJ5141

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.318
10+
$0.260
25+
$0.247
50+
$0.234
100+
$0.221
More Pricing...
Min: 5 / Mult: 5
Band Pass
4Pins
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2.4GHz to 2.5GHz
-
Bluetooth, WLAN
0603 [1608 Metric]
DEA Series
29AJ5147

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.327
10+
$0.253
25+
$0.241
50+
$0.228
100+
$0.216
More Pricing...
Min: 5 / Mult: 5
High Pass
4Pins
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5.15GHz to 5.85GHz
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WLAN
0603 [1608 Metric]
DEA Series
29AJ5132

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.489
10+
$0.431
25+
$0.390
50+
$0.348
100+
$0.307
More Pricing...
Min: 5 / Mult: 5
Band Pass
4Pins
-
4.9GHz to 5.95GHz
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WLAN
0402 [1005 Metric]
DEA Series
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