50 Ohm dual knob manual attenuator with 110dB of attenuation and SMA female

50 Ohm dual knob manual attenuator with 110dB of attenuation and SMA female50 Ohm Dual Rotor Manual Attenuators

The JFW 50 Ohm dual 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 on your RF test bench or mounting it to a panel, the JFW dual rotary attenuator makes adjusting attenuation quick and easy.

Dual Rotor Attenuator

All of these 50 Ohm manual step attenuators are dual rotor type which means that each attenuator has two knobs.  For example our 0-110 x 1dB step models have a 10dB step knob and a 1dB step knob.  The attenuation setting of the unit is the sum of both knob settings.

Panel Mount

All JFW rotary attenuators have threaded mounting holes on the front plate behind the knobs.  Both knobs have to be removed in order to mount the attenuator.  We recommend setting both knobs to the 0dB position before removing the knobs.

Frequently Asked Questions

For your specific application, please contact JFW for assistance or use our Inquiry Form.

JFW Model #ImpedancedB TotaldB StepFrequency StartFrequency StopRF Input PowerRF Connectors
50DR-00150 Ohm110 dB1 dBDC1000 MHz2 WattsBNC, N, RPT, SMA, TNC
50DR-04650 Ohm50 dB1 dBDC2500 MHz2 WattBNC, N, SMA, TNC
50DR-05550 Ohm30 dB1 dBDC2000 MHz2 WattBNC, N, RPT, SMA, TNC, 4.1/9.5
50DR-06050 Ohm11 dB0.1 dBDC2000 MHz2 WattBNC, N, RPT, SMA, TNC
50DR-06150 Ohm80 dB1 dBDC2200 MHz2 WattBNC, N, SMA
50DR-06350 Ohm50 dB1 dBDC1100 MHz2 WattBNC, N, SMA, TNC
50DR-07750 Ohm90 dB1 dBDC2000 MHz2 WattBNC, N, SMA, TNC
50DR-08250 Ohm110 dB1 dBDC2000 MHz2 WattBNC, N, SMA, TNC
50DR-09650 Ohm30 dB1 dBDC3000 MHz2 WattN, SMA, TNC
50DR-11150 Ohm60 dB1 dBDC2700 MHz2 WattN, SMA
50DR-11950 Ohm110 dB1 dBDC2200 MHz2 WattBNC, N, SMA, TNC
50DR-12150 Ohm110 dB1 dBDC15 MHz2 WattBNC, N, SMA
50DR-12550 Ohm80 dB1 dBDC2700 MHz2 WattN, SMA
50DR-12850 Ohm30 dB1 dBDC2500 MHz2 WattN, SMA, TNC
50DR-12950 Ohm11 dB0.1 dBDC112 MHz2 WattBNC, N, RPT, SMA, TNC
50DR-14150 Ohm40 dB1 dBDC3600 MHz2 WattN, SMA
50DR-14350 Ohm80 dB1 dBDC3000 MHz2 WattN, SMA