RF Filters:

255 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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RF Filter Applications
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4214801

RoHS

Each
1+
RM1,077.490
Min: 1 / Mult: 1
Band Pass
-
902MHz to 928MHz
GSM, ISM, RFID, RF, SCADA
-
-
3106011

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.800
10+
RM1.280
100+
RM1.100
500+
RM1.030
1000+
RM0.967
Min: 5 / Mult: 5
Low Pass
6Pins
2.4GHz to 2.5GHz
Bluetooth
WLCSP
-
1885520

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.980
10+
RM1.410
100+
RM1.220
500+
RM1.140
1000+
RM1.040
Min: 5 / Mult: 5
Low Pass
8Pins
902MHz to 928MHz
-
0805 [2012 Metric]
-
1885520RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.220
500+
RM1.140
1000+
RM1.040
Min: 100 / Mult: 1
Low Pass
8Pins
902MHz to 928MHz
-
0805 [2012 Metric]
-
3650692

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.240
10+
RM0.894
100+
RM0.883
Min: 5 / Mult: 5
Band Pass
4Pins
2.3GHz to 2.69GHz
Bluetooth, LTE, UMTS, WLAN, WiMAX, 5G
0603 [1608 Metric]
DEA Series
3106011RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.100
500+
RM1.030
1000+
RM0.967
Min: 100 / Mult: 1
Low Pass
6Pins
2.4GHz to 2.5GHz
Bluetooth
WLCSP
-
3650692RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM0.883
Min: 100 / Mult: 10
Band Pass
4Pins
2.3GHz to 2.69GHz
Bluetooth, LTE, UMTS, WLAN, WiMAX, 5G
0603 [1608 Metric]
DEA Series
3650681

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.560
10+
RM1.450
100+
RM1.260
500+
RM0.962
Min: 5 / Mult: 5
Band Pass
5Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0604 [1411 Metric]
DEA Series
3650675

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.330
10+
RM0.973
Min: 5 / Mult: 5
Coupler
6Pins
698MHz to 2.62GHz
WLAN
0603 [1608 Metric]
HHM Series
3517018

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM4.670
10+
RM4.510
25+
RM4.470
50+
RM3.860
100+
RM3.670
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
3517018RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM3.670
500+
RM3.640
Min: 100 / Mult: 10
-
-
2.4GHz to 2.5GHz
Wireless Communication Systems Like Home RF, DECT, WLAN, Bluetooth, ZigBee
0805 [2012 Metric]
WE-BAL Series
3650675RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
RM0.973
Min: 100 / Mult: 10
Coupler
6Pins
698MHz to 2.62GHz
WLAN
0603 [1608 Metric]
HHM Series
3813103

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM8.880
100+
RM7.520
500+
RM7.180
1000+
RM6.840
2000+
RM6.710
More Pricing...
Min: 10 / Mult: 10
Low Pass
8Pins
5.15GHz to 5.875GHz
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF Series
3650681RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.260
500+
RM0.962
Min: 100 / Mult: 10
Band Pass
5Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0604 [1411 Metric]
DEA Series
3813103RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM7.520
500+
RM7.180
1000+
RM6.840
2000+
RM6.710
4000+
RM6.570
More Pricing...
Min: 100 / Mult: 10
Low Pass
8Pins
5.15GHz to 5.875GHz
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF Series
4354195RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
RM1.570
250+
RM1.540
500+
RM1.510
1000+
RM1.480
2000+
RM1.470
Min: 100 / Mult: 5
Low Pass
4Pins
5MHz to 1002MHz
STB
1008 [2520 Metric]
DEA Series
4381842RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.810
500+
RM1.610
1000+
RM1.500
2000+
RM1.450
4000+
RM1.200
Min: 100 / Mult: 10
Triplexer
8Pins
1.56 GHz to 1.606 GHz, 2.4 GHz to 2.5 GHz, 4.9 GHz to 5.95 GHz
Broadband Gateways, Dual-Band Wi-Fi & GPS, GNSS, Wi-Fi Soundbars, Speakers & 802.11a/b/g/ac
0805 [2012 Metric]
-
4154130

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM1.770
Min: 1 / Mult: 1
Band Pass
6Pins
2.4GHz to 2.5GHz
ZigBee
0805 [2012 Metric]
-
4354195

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM1.600
50+
RM1.570
250+
RM1.540
500+
RM1.510
1000+
RM1.480
More Pricing...
Min: 5 / Mult: 5
Low Pass
4Pins
5MHz to 1002MHz
STB
1008 [2520 Metric]
DEA Series
4381842

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM2.140
100+
RM1.810
500+
RM1.610
1000+
RM1.500
2000+
RM1.450
More Pricing...
Min: 10 / Mult: 10
Triplexer
8Pins
1.56 GHz to 1.606 GHz, 2.4 GHz to 2.5 GHz, 4.9 GHz to 5.95 GHz
Broadband Gateways, Dual-Band Wi-Fi & GPS, GNSS, Wi-Fi Soundbars, Speakers & 802.11a/b/g/ac
0805 [2012 Metric]
-
4154130RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
1+
RM1.770
Min: 100 / Mult: 10
Band Pass
6Pins
2.4GHz to 2.5GHz
ZigBee
0805 [2012 Metric]
-
4453971

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
RM0.192
100+
RM0.151
500+
RM0.141
2500+
RM0.134
5000+
RM0.127
More Pricing...
Min: 10 / Mult: 10
-
-
-
-
-
-
3650703

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
RM2.120
10+
RM1.520
100+
RM1.330
500+
RM1.250
1000+
RM1.080
Min: 5 / Mult: 5
Low Pass
4Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0603 [1608 Metric]
-
3517042

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
RM6.890
10+
RM6.520
25+
RM6.280
50+
RM5.990
100+
RM5.560
More Pricing...
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
3678599

RoHS

Each
1+
RM147.640
Min: 1 / Mult: 1
Band Pass
-
2.4GHz to 2.5GHz
UAV/Drone Antennas
-
-
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