75 Ohm Electro-Mechanical RF Switches

Our 75 Ohm electro-mechanical RF switch models are listed in the tables below.  Failsafe models will provide an active RF path even when control power is lost.  The normally open models have no active RF path when control power is lost.  Normally open models also have an “all off” setting which can be important when building a switch assembly or switch matrix. If you can’t find a model to meet your requirements, please contact JFW for assistance or use our Inquiry Form.

Absorptive RF Switch

The term absorptive RF switch refers to the state of the unused ports.  For 75 Ohm RF switches, absorptive unused ports are internally terminated (i.e. self-terminating) at an impedance of 75 Ohms.

RF Switch Terminology and FAQs

Failsafe Models

JFW Model #	Impedance	Switch Config	Switch Type	Frequency Start	Frequency Stop	Switching Speed	RF Input Power	Isolation	Control
75S-072	75 Ohm	1P2T	Failsafe, Absorptive	DC	1450 MHz	10 mS	+20 dBm	45 dB	+5, +12, +24, +28 Vdc
75S-111	75 Ohm	1P2T	Failsafe, Absorptive	DC	2150 MHz	10 mS	+20 dBm	45 dB	+12 Vdc
75S-214	75 Ohm	1P8T	Failsafe, Absorptive	DC	1000 MHz	10 mS	+20 dBm	55 dB	TTL
75S-221	75 Ohm	1P8T	Failsafe, Absorptive	DC	2150 MHz	10 mS	+20 dBm	50 dB	+12 Vdc
75S-243	75 Ohm	1P16T	Failsafe, Absorptive	DC	1000 MHz	10 mS	+20 dBm	55 dB	+12 Vdc
75S-257	75 Ohm	1P12T	Failsafe, Absorptive	DC	1000 MHz	10 mS	+20 dBm	55 dB	TTL
75S-267	75 Ohm	1P2T	Failsafe, Absorptive	DC	1450 MHz	10 mS	+20 dBm	45 dB	TTL
75S-284	75 Ohm	1P2T	Failsafe, Absorptive	DC	2000 MHz	10 mS	+20 dBm	80 dB	TTL
75S-303	75 Ohm	1P16T	Failsafe, Absorptive	DC	2150 MHz	10 mS	+27 dBm	50 dB	TTL
75S-382	75 Ohm	1P12T	Failsafe, Absorptive	DC	2150 MHz	10 mS	+27 dBm	50 dB	+12 Vdc
75S-401	75 Ohms	1P2T	Failsafe, Absorptive	DC	2150 MHz	10 mS	+20 dBm	45 dB	TTL

Normally Open Models

JFW Model #	Impedance	Switch Config	Switch Type	Frequency Start	Frequency Stop	Switching Speed	RF Input Power	Isolation	Control
75S-073	75 Ohm	1P4T	Normally Open, Aborptive	DC	1450 MHz	10 mS	+20 dBm	45 dB	+12 Vdc
75S-087	75 Ohm	1P3T	Normally Open, Aborptive	DC	1450 MHz	10 mS	+20 dBm	45 dB	+12 Vdc
75S-208	75 Ohm	1P4T	Normally Open, Aborptive	DC	1450 MHz	10 mS	+20 dBm	45 dB	TTL
75S-285	75 Ohm	1P3T	Normally Open, Aborptive	DC	2000 MHz	10 mS	+20 dBm	80 dB	TTL
75S-295	75 Ohm	1P4T	Normally Open, Aborptive	DC	2000 MHz	10 mS	+20 dBm	80 dB	TTL
75S-306	75 Ohm	1P4T	Normally Open, Aborptive	DC	2150 MHz	10 mS	+20 dBm	50 dB	+12 Vdc
75S-348	75 Ohm	1P1T	Normally Open, Aborptive	DC	2150 MHz	10 mS	+20 dBm	50 dB	+12 Vdc
75S-118	75 Ohm	1P3T	Normally Open, Aborptive	DC	2150 MHz	10 mS	+20 dBm	60 dB	+12 Vdc
75S-381	75 Ohm	1P6T	Normally Open, Aborptive	DC	2150 MHz	10 mS	+20 dBm	55 dB	+12 Vdc