The CS-37K Series-Failsafe from Teledyne Relays is a RF Switch with Frequency DC to 40 GHz, Insertion Loss 0.15 to 1.35 dB, Isolation 50 to 70 dB, Actuator Voltage 12 to 28 V, Actuator Current 400 to 800 mA. Tags: Module with Connectors, Electro-Mechanical. More details for CS-37K Series-Failsafe can be seen below.