RF Filters:

257 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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2148528RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.470
500+
RM1.290
1000+
RM1.280
Min: 100 / Mult: 1
Band Pass
4Pins
2.4GHz to 2.5GHz
-
0805 [2012 Metric]
-
3228016

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
RM0.726
10+
RM0.518
100+
RM0.450
500+
RM0.422
1000+
RM0.397
Min: 5 / Mult: 5
LC
2Pins
2.4GHz ~ 2.5GHz
Aircraft, Aerospace, Medical, Power Plant Control, Traffic Signal & Transportation Equipment
01005 [0402 Metric]
LQZ02HQ Series
3650691

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
RM1.490
10+
RM1.060
100+
RM0.969
Min: 5 / Mult: 5
Band Pass
3Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0603 [1608 Metric]
DEA Series
3650681

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
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
2913685

RoHS

Each
1+
RM2.610
10+
RM2.580
25+
RM2.560
50+
RM2.540
100+
RM2.520
More Pricing...
Min: 1 / Mult: 1
-
10Pins
891.5 MHz
ZigBee
0805 [2012 Metric]
LFD Series
3650680

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
RM2.110
10+
RM1.840
100+
RM1.260
500+
RM1.250
1000+
RM1.240
Min: 5 / Mult: 5
Band Pass
4Pins
4.9GHz to 5.95GHz
WLAN
0402 [1005 Metric]
-
3650694

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
RM1.330
10+
RM1.210
100+
RM1.020
500+
RM0.908
Min: 5 / Mult: 5
Low Pass
4Pins
1.71GHz to 2.69GHz
LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
3650687

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
RM1.200
10+
RM0.961
100+
RM0.893
Min: 5 / Mult: 5
Low Pass
6Pins
1.4279GHz to 2.17GHz
LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
3813099

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
RM8.310
10+
RM7.800
25+
RM7.470
50+
RM7.120
100+
RM6.500
More Pricing...
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
2148529RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM2.480
500+
RM2.440
Min: 100 / Mult: 1
Low Pass
8Pins
858MHz to 878MHz
-
0805 [2012 Metric]
-
3517042RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM5.560
500+
RM5.450
Min: 100 / Mult: 5
Band Pass
-
2.4GHz to 2.5GHz
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
1008 [2520 Metric]
WE-BPF Series
3387267RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.070
500+
RM1.010
1000+
RM0.958
Min: 100 / Mult: 1
Low Pass
-
2.4GHz ~ 2.5GHz
Bluetooth 5, IEEE 802.15.4, OpenThread, Optimized for STM32WB55Vx, Zigbee
CSP
-
3228016RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
RM0.422
1000+
RM0.397
Min: 500 / Mult: 10
LC
2Pins
2.4GHz ~ 2.5GHz
Aircraft, Aerospace, Medical, Power Plant Control, Traffic Signal & Transportation Equipment
01005 [0402 Metric]
LQZ02HQ 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
3650687RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM0.893
Min: 100 / Mult: 10
Low Pass
6Pins
1.4279GHz to 2.17GHz
LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
3813100RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM9.380
500+
RM9.200
Min: 100 / Mult: 10
Low Pass
8Pins
908MHz to 928MHz
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF 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
3813102

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
RM8.830
10+
RM8.280
25+
RM7.930
50+
RM7.560
100+
RM6.900
More Pricing...
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
3650682RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM0.906
500+
RM0.874
Min: 100 / Mult: 10
Band Pass
5Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0604 [1411 Metric]
DEA Series
3650691RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM0.969
Min: 100 / Mult: 10
Band Pass
3Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0603 [1608 Metric]
DEA Series
3650693RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM0.893
Min: 100 / Mult: 10
Low Pass
4Pins
673MHz to 2.69GHz
GSM, LTE, UMTS, 5G
0603 [1608 Metric]
DEA Series
3650696

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
5+
RM1.340
10+
RM0.956
100+
RM0.893
Min: 5 / Mult: 5
High Pass
4Pins
5.15GHz to 5.85GHz
WLAN
0603 [1608 Metric]
DEA Series
3650701RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM1.860
500+
RM1.850
Min: 100 / Mult: 5
Band Pass
3Pins
2.4GHz to 2.5GHz
Bluetooth, WLAN
0805 [2012 Metric]
-
3813100

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
RM13.340
10+
RM12.000
25+
RM11.330
50+
RM10.660
100+
RM9.380
More Pricing...
Min: 1 / Mult: 1
Low Pass
8Pins
908MHz to 928MHz
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-LPF Series
3812924RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
RM7.210
500+
RM7.160
Min: 100 / Mult: 10
Band Pass
4Pins
2.4GHz to 2.5GHz
RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth
0805 [2012 Metric]
WE-BPF Series
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