Terminations & Mismatch Loads
(75 to 1000 Watts)

JFW’s online 50 Ohm high power termination and mismatch load models are listed in the table below.  JFW has been designing, manufacturing, and delivering quality terminations and mismatch loads for over 30 years.  Our mismatch loads allow you to select the impedance mismatch your RF testing requires.

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

Termination

The terminations listed in the model table are all 50 Ohm impedance.  Terminations are used to properly terminate a port in the matching impedance to prevent RF signal reflections.

Mismatch Load

The mismatch loads in the model table have model numbers that end with -XXX.  The -XXX is used to specify the mismatch value.  For example, JFW model #50T-032-5.0 N M is a  5.0:1 mismatch load (i.e. 250 Ohms) with a 50 Ohm N male connector.

Models with Round Heatsinks

JFW Model #	Impedance	RF Connectors	Frequency Range	RF Input Power	Description	Heatsink Style
50T-303-XXX	50 Ohm	BNC, N, SMA, TNC, 7/16, 4.3-10, 4.1-9.5	DC-3 GHz	100 Watt	Termination or Mismatch Load	Round
50T-338-XXX	50 Ohm	N, 7/16	DC-3 GHz	200 Watt	Termination or Mismatch Load	Round
50T-350	50 Ohm	N, 7/16	DC-3 GHz	150 Watt	Termination	Round
50T-367	50 Ohm	N, 7/16	DC-3 GHz	250 Watt	Termination	Round
50T-333-XXX	50 Ohm	BNC, N, SMA, TNC, 7/16, 4.3-10	DC-1 GHz	200 Watt	Termination or Mismatch Load	Round

Models with Square Heatsinks

JFW Model #	Impedance	RF Connectors	Frequency Range	RF Input Power	Description	Heatsink Style
50T-420	50 Ohm	N, TNC, 7/16, 4.3-10.0	DC-1 GHz	500 Watt	Termination	Square
50T-421	50 Ohm	N, TNC, 7/16, 4.3-10.0	DC-3 GHz	500 Watt	Termination	Square
50T-495	50 Ohm	N, 7/16	DC-3 GHz	1000 Watt	Termination	Square
50T-513	50 Ohm	N, 7/16	DC-0.3 GHz	1000 Watt	Termination	Square
50T-521	50 Ohm	N, 7/16	DC-1 GHz	1000 Watt	Termination	Square
50T-541-XXX	50 Ohm	N, TNC, 7/16	DC-1 GHz	500 Watt	Mismatch Load	Square
50T-549	50 Ohm	BNC, N, SMA, TNC, 7/16	DC-3 GHz	75 Watt	Termination	Square
50T-581-XXX	50 Ohm	BNC, N, SMA, TNC, 7/16	DC-1 GHz	80 Watt	Termination or Mismatch Load	Square
50T-418	50 Ohm	N, TNC, 7/16, 4.3-10.0	DC-1 GHz	300 Watt	Termination	Square
50T-419	50 Ohm	N, TNC, 7/16, 4.3-10.0	DC-3 GHz	300 Watt	Termination	Square
50T-032-XXX	50 Ohm	BNC, N, SMA, TNC, 7/16	DC-1 GHz	100 Watt	Termination or Mismatch Load	Square
50T-242	50 Ohm	BNC, N, SMA, TNC, 7/16	DC-2 GHz	100 Watt	Termination	Square
50T-243	50 Ohm	BNC, N, SMA, TNC, 7/16	DC-3 GHz	100 Watt	Termination	Square
50T-684-XXX	50 Ohm	N, TNC, 7/16	DC-1 GHz	300 Watt	Mismatch Load	Square
50T-678	50 Ohm	N, 7/16, 4.3-10	DC-6 GHz	100 Watt	Termination	Square
50T-721	50 Ohm	N, SMA	DC-8.4 GHz	100 Watt	Termination	Square
50T-720	50 Ohm	N, SMA	DC-18 GHz	100 Watt	Termination	Square
50T-735	50 Ohm	N, SMA	DC-12.4 GHz	100 Watt	Termination	Square

Bolt Down Models

JFW Model #	Impedance	RF Connectors	Frequency Range	RF Input Power	Description	Heatsink Style
50T-687	50 Ohm	N, SMA	DC-6 GHz	100 Watt	Termination	Bolt Down
50T-686	50 Ohm	N, SMA	DC-3 GHz	100 Watt	Termination	Bolt Down
50T-688	50 Ohm	N, SMA	DC-3 GHz	200 Watt	Termination	Bolt Down
50T-689	50 Ohm	N, SMA	DC-6 GHz	200 Watt	Termination	Bolt Down

If you have specific mechanical restrictions, RF specifications, or required unit screening, please contact us. JFW does not charge NRE’s for new termination models. We pride ourselves in the ability to offer custom models with pricing in-line with our catalog models.