50 Ohm Fixed Attenuators
(0.5 to 2 Watts)
The name JFW has been synonymous with 50 Ohm fixed attenuators since our inception in 1979. JFW has the capabilities to match custom dB values with a variety of RF connector combinations to make a fixed attenuator for your specific application.
An attenuator is used to decrease the power level of a RF signal. A fixed attenuator is an attenuator that has a single fixed dB value. When purchasing a fixed attenuator you have to specify which dB value you require. Here are two selections charts to help determine which dB value you need.
- Selection chart for decreasing power level
- Selection chart for reducing VSWR
Please contact JFW for recommendations or use our Inquiry Form.
JFW Model # | Impedance | Frequency Range | RF Input Power | Attenuation Values | RF Connectors |
---|---|---|---|---|---|
50F-XXX | 50 Ohm | DC-2.2 GHz | 1 Watt | 1-30 dB | BNC, N, SMA, TNC |
50FP-XXX-H2 | 50 Ohm | DC-2 GHz | 2 Watt | 1-65 dB | BNC, N, RP-TNC, SMA, TNC, 7/16, 4.3/10.0 |
50FP-XXX-H3 | 50 Ohm | DC-3 GHz | 2 Watt | 1-30 dB | BNC, N, SMA, TNC, 7/16, 4.3/10.0 |
50FP-XXX-H4 | 50 Ohm | DC-4 GHz | 2 Watt | 1-30 dB | BNC, N, SMA, TNC |
50FP-XXX-H6 | 50 Ohm | DC-6 GHz | 2 Watt | 1-20 dB | N, SMA, TNC, 4.3/10.0 |
50HFFB-XXX-2/40 | 50 Ohm | DC-40 GHz | 2 Watt | 1-10, 20, 30 dB | 2.92mm |
50HFFA-XXX-2/18 | 50 Ohm | DC-18 GHz | 2 Watt | 1-30 dB | N or SMA |
50HFFA-XXX-2/6 | 50 Ohm | DC-6 GHz | 2 Watt | 1-30 dB | N or SMA |
50HFFA-XXX-2/8 | 50 Ohm | DC-8.4 GHz | 2 Watt | 1-30 dB | SMA |
50HFFA-XXX-2/26 | 50 Ohm | DC-26.5 GHz | 2 Watt | 1-10, 20, 30 dB | SMA |
DC Passing Attenuators
DC passing attenuators will pass the DC signal through the attenuator without being attenuated. They only attenuate over the specified frequency band.
JFW Model # | Impedance | Frequency Start | Frequency Stop | RF Input Power | Attenuation Values | RF Connectors |
---|---|---|---|---|---|---|
50FFD-XXX | 50 Ohm | 600 MHz | 1950 MHz | +21 dBm DC passing | 1-30 dB | BNC, N, SMA, TNC |
50FFP-XXX | 50 Ohm | 400 MHz | 2500 MHz | +21 dBm DC passing | 1-10 dB | BNC, N, SMA, TNC |
50FFW-XXX | 50 Ohm | 950 MHz | 2150 MHz | +21 dBm DC passing | 1-25 dB | BNC, N, SMA, TNC |
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2 Watt Fixed Attenuator DC-26.5 GHz | 50HFFA-XXX-2/26
JFW Model #: 50HFFA-XXX-2/26
Description: Fixed attenuator
Impedance: 50 Ohm
Frequency Range: DC-26.5 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-10, 20, 30 dB
RF Connectors: SMA male/female
Documentation: Data Sheet | Drawing -
2 Watt Fixed Attenuator DC-8.4 GHz | 50HFFA-XXX-2/8
JFW Model #: 50HFFA-XXX-2/8
Description: Fixed attenuator
Impedance: 50 Ohm
Frequency Range: DC-8.4 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-30 dB
RF Connectors: SMA male/female
Documentation: Data Sheet | Drawing -
2 Watt Fixed Attenuator DC-40 GHz | 50HFFB-XXX-2/40
JFW Model #: 50HFFA-XXX-2/40
Description: Fixed attenuator
Impedance: 50 Ohm
Frequency Range: DC-40 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-10, 20 or-30 dB
RF Connectors: 2.92 mm
Documentation: Data Sheet | Drawing -
2 Watt Fixed Attenuator DC-18 GHz | 50HFFA-XXX-2/18
JFW Model #: 50HFFA-XXX-2/18
Description: Fixed attenuator
Impedance: 50 Ohm
Frequency Range: DC-18 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-30 dB
RF Connectors: N or SMA
Documentation: N data sheet | N drawing | SMA data sheet | SMA drawing -
2 Watt Fixed Attenuator DC-6 GHz | 50HFFA-XXX-2/6
JFW Model #: 50HFFA-XXX-2/6
Description: Fixed attenuator
Impedance: 50 Ohm
Frequency Range: DC-6 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-30 dB
RF Connectors: N or SMA
Documentation: Data Sheet (SMA) | Drawing (SMA) | Data Sheet (N) | Drawing (N) -
2 Watt Fixed Attenuator DC-6GHz | 50FP-XXX-H6
JFW Model #: 50FP-XXX-H6
Impedance: 50 Ohm
Frequency Range: DC-6 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-20 dB
RF Connectors: N, TNC, SMA, 4.3/10.0
Documentation: Data Sheet | Drawing (N) | Drawing (SMA) | Drawing (TNC) | Drawing (4.3-10)If Connector Type is Other, please specify in REMARKS field of the Request a Quote form.
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2 Watt Fixed Attenuator DC-4GHz | 50FP-XXX-H4
JFW Model #: 50FP-XXX-H4
Impedance: 50 Ohm
Frequency Range: DC-4 GHz
RF Input Power: 2 Watts
Attenuation Values: 1-30 dB
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Drawing (SMA) | Drawing (TNC)If Connector Type is Other, please specify in REMARKS field of the Request a Quote form.
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2 Watt Fixed Attenuator DC-3GHz | 50FP-XXX-H3
JFW Model #: 50FP-XXX-H3
Impedance: 50 Ohm
Frequency Range: DC-3000 MHz
RF Input Power: 2 Watts
Attenuation Values: 1-30 dB
RF Connectors: BNC, N, SMA, TNC, 7/16, 4.3/10.0
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Drawing (SMA) | Drawing (TNC)If Connector Type is Other, please specify in REMARKS field of the Request a Quote form.
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2 Watt Fixed Attenuator DC-2GHz | 50FP-XXX-H2
JFW Model #: 50FP-XXX-H2
Impedance: 50 Ohm
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watts
Attenuation Values: 1-65 dB
RF Connectors: BNC, N, RP-TNC, SMA, TNC, 7/16, 4.3/10.0
Documentation: Data Sheet | Drawing (N)If Connector Type is Other, please specify in REMARKS field of the Request a Quote form.
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DC Passing Attenuator 950-2150MHz | 50FFW-XXX
JFW Model #: 50FFW-XXX
Impedance: 50 Ohm
Frequency Range: 950-2150 MHz
RF Input Power: +21 dBm DC Passing
DC Current Handling: 4 Amps
Attenuation Values: 1-25 dB
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing (N) | Drawing (SMA) -
DC Passing Attenuator 400-2500MHz | 50FFP-XXX
JFW Model #: 50FFP-XXX
Impedance: 50 Ohm
Frequency Range: 400-2500 MHz
RF Input Power: +21 dBm DC Passing
DC Current Handling: 4 Amps
Attenuation Values: 1-10 dB
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing (N) | Drawing (SMA)If Connector Type is Other, please specify in REMARKS field of the Request a Quote form.
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DC Passing Attenuator 600-1950MHz | 50FFD-XXX
JFW Model #: 50FFD-XXX
Impedance: 50 Ohm
Frequency Range: 600-1950 MHz
RF Input Power: +21 dBm DC Passing
DC Current Handling: 4 Amps
Attenuation Values: 1-30 dB
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | DrawingIf Connector Type is Other, please specify in REMARKS field of the Request a Quote form.
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1 Watt Fixed Attenuator | 50F-XXX
JFW Model #: 50F-XXX
Impedance: 50 Ohm
Attenuation Values:
1-20 dB (DC-2.2 GHz)
21-30 dB (DC-1 GHz)
RF Input Power: 1 Watt
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Drawing (TNC) | Drawing (SMA)