50 Ohm Single Rotor Manual Attenuators
The JFW 50 Ohm single rotary attenuator has been a staple tool to RF engineers for over 30 years. Our years of proven quality and performance make our manually variable attenuators right for any RF environment. Whether you are using the rotary attenuator at your RF test bench or mounting it to a panel, the JFW single rotary attenuator makes adjusting attenuation quick and easy.
Single Rotor Attenuator
All of these 50 Ohm manual step attenuators have a single rotor design which means that each attenuator has only one manual knob for adjusting attenuation.
Panel Mount
All JFW rotary attenuators have threaded mounting holes on the front plate behind the knob. The knob has to be removed in order to mount the attenuator. We recommend setting attenuator to the 0dB position before removing the knob.
For your specific attenuation application, please contact JFW or use our Inquiry Form.
JFW Model # | Impedance | dB Total | dB Step | Frequency Start | Frequency Stop | RF Input Power | RF Connectors |
---|---|---|---|---|---|---|---|
50R-019 | 50 Ohm | 10 dB | 1 dB | DC | 2200 MHz | 2 Watt | BNC, RPT, SMA, TNC |
50R-028 | 50 Ohm | 1 dB | 0.1 dB | DC | 1000 MHz | 2 Watt | BNC, RPT, SMA, TNC |
50R-029 | 50 Ohm | 70 dB | 10 dB | DC | 2200 MHz | 2 Watt | BNC, N, SMA, TNC, 4.1/9.5 |
50R-043 | 50 Ohm | 100 dB | 10 dB | DC | 1000 MHz | 2 Watt | BNC, N, SMA, TNC |
50R-124 | 50 Ohm | 70 dB | 10 dB | DC | 2500 MHz | 2 Watt | BNC, N, SMA, TNC |
50R-137 | 50 Ohm | 80 dB | 10 dB | DC | 2550 MHz | 2 Watt | N, SMA, TNC |
50R-215 | 50 Ohm | 1 dB | 0.1 dB | DC | 2200 MHz | 2 Watt | BNC, SMA, TNC |
50R-234 | 50 Ohm | 100 dB | 10 dB | DC | 2550 MHz | 2 Watt | N, SMA |
50R-246 | 50 Ohm | 70 dB | 10 dB | DC | 2700 MHz | 2 Watt | SMA |
50R-248 | 50 Ohm | 10 dB | 1 dB | DC | 2500 MHz | 2 Watt | BNC, RPT, SMA, TNC |
50R-249 | 50 Ohm | 1 dB | 0.1 dB | DC | 2500 MHz | 2 Watt | BNC, SMA |
50R-254 | 50 Ohm | 1 dB | 0.1 dB | DC | 2000 MHz | 2 Watt | BNC, SMA, TNC |
50R-310 | 50 Ohm | 10 dB | 1 dB | DC | 2700 MHz | 2 Watt | SMA |
50R-385 | 50 Ohm | 10 dB | 1 dB | DC | 3000 MHz | 2 Watt | SMA |
50R-388 | 50 Ohm | 30 dB | 3 dB | DC | 2700 MHz | 2 Watt | BNC, SMA, TNC |
50R-397 | 50 Ohm | 70 dB | 10 dB | DC | 3000 MHz | 2 Watt | SMA, N |
50R-408 | 50 Ohm | 10 dB | 1 dB | DC | 3600 MHz | 2 Watt | SMA |
50R-349 | 50 Ohm | 5 dB | 0.5 dB | DC | 2500 MHz | 2 Watt | SMA |
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Manual Attenuator DC-2.2GHz 0-10dB x 1dB | 50R-019
JFW Model #: 50R-019
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 10 dB
dB Step: 1 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, RPT, SMA, TNC
Documentation: Data Sheet | Drawing (BNC) | Drawing (SMA) | Drawing (TNC) | Knob/Mounting -
Manual Attenuator DC-2.2GHz 0-70dB x 10dB | 50R-029
JFW Model #: 50R-029
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 70 dB
dB Step: 10 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC, 4.1/9.5
Documentation: Data Sheet | Drawing SMA | Drawing BNC | Drawing N | Knob/Mounting -
Manual Attenuator DC-2.5GHz 0-5dB x 0.5dB | 50R-349
JFW Model #: 50R-349
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 5 dB
dB Step: 0.5 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-3.6GHz 0-10dB x 1dB | 50R-408
JFW Model #: 50R-408
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 10 dB
dB Step: 1 dB
Frequency Range: DC-3600 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Panel Mount -
Manual Attenuator DC-3GHz 0-70dB x 10dB | 50R-397
JFW Model #: 50R-397
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 70 dB
dB Step: 10 dB
Frequency Range: DC-3000 MHz
RF Input Power: 2 Watts
RF Connectors: SMA, N
Documentation: Data Sheet | Drawing (SMA) | Drawing (N) | Knob/Mounting -
Manual Attenuator DC-2.7GHz 0-30dB x 3dB | 50R-388
JFW Model #: 50R-388
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 30 dB
dB Step: 3 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, SMA, TNC
Documentation: Data Sheet | Drawing (BNC) | Drawing (SMA) | Drawing (TNC) | Knob/Mounting -
Manual Attenuator DC-3GHz 0-10dB x 1dB | 50R-385
JFW Model #: 50R-385
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 10 dB
dB Step: 1 dB
Frequency Range: DC-3000 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-2.7GHz 0-10dB x 1dB | 50R-310
JFW Model #: 50R-310
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 10 dB
dB Step: 1 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-2GHz 0-1dB x 0.1dB | 50R-254
JFW Model #: 50R-254
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 1 dB
dB Step: 0.1 dB
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, SMA, TNC
Documentation: Data Sheet | Drawing (BNC) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-2.5GHz 0-1dB x 0.1dB | 50R-249
JFW Model #: 50R-249
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 1 dB
dB Step: 0.1 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, SMA
Documentation: Data Sheet | Drawing (SMA) | Drawing (BNC) | Knob/Mounting -
Manual Attenuator DC-2.5GHz 0-10dB x 1dB | 50R-248
JFW Model #: 50R-248
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 10 dB
dB Step: 1 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, RPT, SMA, TNC
Documentation: Data Sheet | Drawing (SMA) | Drawing (BNC) | Drawing (TNC) | Knob/Mounting -
Manual Attenuator DC-2.7GHz 0-70dB x 10dB | 50R-246
JFW Model #: 50R-246
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 70 dB
dB Step: 10 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-2.55GHz 0-100dB x 10dB | 50R-234
JFW Model #: 50R-234
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 100 dB
dB Step: 10 dB
Frequency Range: DC-2550 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-2.2GHz 0-1dB x 0.1dB | 50R-215
JFW Model #: 50R-215
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 1 dB
dB Step: 0.1 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, SMA, TNC
Documentation: Data Sheet | Drawing (BNC) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-2.55GHz 0-80dB x 10dB | 50R-137
JFW Model #: 50R-137
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 80 dB
dB Step: 10 dB
Frequency Range: DC-2550 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA, TNC
Documentation: Data Sheet | Drawing (N) | Drawing (SMA) | Drawing (TNC) | Knob/Mounting