RF Filters:

247 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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3517018

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.83.750
10+
Rs.80.800
25+
Rs.80.110
50+
Rs.69.210
100+
Rs.65.800
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
3650675

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.20.690
10+
Rs.15.000
100+
Rs.13.470
Min: 5 / Mult: 5
Coupler
6Pins
698MHz to 2.62GHz
WLAN
0603 [1608 Metric]
HHM Series
3517018RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.65.800
500+
Rs.65.340
Min: 100 / Mult: 1
-
-
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
100+
Rs.13.470
Min: 100 / Mult: 10
Coupler
6Pins
698MHz to 2.62GHz
WLAN
0603 [1608 Metric]
HHM Series
3813103RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
Rs.95.470
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
3813103

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.95.470
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
4354195RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
Rs.46.790
250+
Rs.38.770
500+
Rs.34.760
1000+
Rs.32.080
2000+
Rs.29.940
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+
Rs.31.670
500+
Rs.28.020
1000+
Rs.26.100
2000+
Rs.24.890
4000+
Rs.20.290
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]
-
4354195

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.53.470
50+
Rs.46.790
250+
Rs.38.770
500+
Rs.34.760
1000+
Rs.32.080
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+
Rs.38.110
100+
Rs.31.670
500+
Rs.28.020
1000+
Rs.26.100
2000+
Rs.24.890
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]
-
4214801

RoHS

Each
1+
Rs.28,255.660
10+
Rs.25,262.180
Min: 1 / Mult: 1
Band Pass
-
902MHz to 928MHz
GSM, ISM, RFID, RF, SCADA
-
-
3106011

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.33.730
10+
Rs.23.790
100+
Rs.20.600
500+
Rs.19.350
1000+
Rs.18.110
Min: 5 / Mult: 5
Low Pass
6Pins
2.4GHz to 2.5GHz
Bluetooth
WLCSP
-
3650703

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.36.800
10+
Rs.26.000
100+
Rs.22.550
500+
Rs.21.220
1000+
Rs.18.010
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+
Rs.124.060
10+
Rs.117.470
25+
Rs.113.080
50+
Rs.107.920
100+
Rs.100.120
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+
Rs.4,045.720
5+
Rs.3,540.010
10+
Rs.2,933.150
50+
Rs.2,629.720
100+
Rs.2,476.590
Min: 1 / Mult: 1
Band Pass
-
2.4GHz to 2.5GHz
UAV/Drone Antennas
-
-
1885520

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.41.140
10+
Rs.29.960
100+
Rs.26.330
500+
Rs.24.990
1000+
Rs.23.050
Min: 5 / Mult: 5
Low Pass
8Pins
902MHz to 928MHz
-
0805 [2012 Metric]
-
2148528

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.48.720
10+
Rs.33.240
100+
Rs.25.500
500+
Rs.20.710
1000+
Rs.20.100
Min: 5 / Mult: 5
Band Pass
4Pins
2.4GHz to 2.5GHz
-
0805 [2012 Metric]
-
3387267

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.32.190
10+
Rs.22.540
100+
Rs.19.140
500+
Rs.18.100
1000+
Rs.17.230
Min: 5 / Mult: 5
Low Pass
-
2.4GHz ~ 2.5GHz
Bluetooth 5, IEEE 802.15.4, OpenThread, Optimized for STM32WB55Vx, Zigbee
CSP
-
2148529

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.87.590
10+
Rs.49.140
25+
Rs.46.940
50+
Rs.44.740
100+
Rs.42.530
More Pricing...
Min: 1 / Mult: 1
Low Pass
8Pins
858MHz to 878MHz
-
0805 [2012 Metric]
-
1885521

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.35.050
10+
Rs.32.610
100+
Rs.21.570
500+
Rs.18.770
1000+
Rs.15.780
Min: 5 / Mult: 5
Low Pass
6Pins
2.4GHz to 2.5GHz
Bluetooth, ISM and 802.11, WLAN, ZigBee
0603 [1608 Metric]
-
3650673

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.20.690
10+
Rs.16.710
100+
Rs.13.470
Min: 5 / Mult: 5
Coupler
6Pins
698MHz to 2.62GHz
WLAN
0603 [1608 Metric]
HHM Series
3650679

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.22.390
10+
Rs.17.390
100+
Rs.14.320
500+
Rs.12.390
1000+
Rs.11.710
Min: 5 / Mult: 5
High Pass
4Pins
5.15GHz to 5.95GHz
WLAN
0402 [1005 Metric]
DEA Series
3650688

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.58.290
10+
Rs.37.150
100+
Rs.30.190
500+
Rs.30.110
1000+
Rs.25.230
Min: 5 / Mult: 5
Band Pass
4Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0603 [1608 Metric]
DEA Series
1885520RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.26.330
500+
Rs.24.990
1000+
Rs.23.050
Min: 100 / Mult: 1
Low Pass
8Pins
902MHz to 928MHz
-
0805 [2012 Metric]
-
3650692

RoHS

Each (Supplied on Cut Tape)
Cut Tape
5+
Rs.24.360
10+
Rs.17.230
100+
Rs.14.880
500+
Rs.14.010
1000+
Rs.13.660
Min: 5 / Mult: 5
Band Pass
4Pins
2.3GHz to 2.69GHz
Bluetooth, LTE, UMTS, WLAN, WiMAX, 5G
0603 [1608 Metric]
DEA Series
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