The CCR-50U Series-Failsafe from Teledyne Relays is a RF Switch with Frequency DC to 53 GHz, Insertion Loss 0.2 to 1.2 dB, Isolation 50 to 80 dB, Supply Voltage 0 to 5.5 V, Actuator Voltage 12 to 28 V. Tags: Module with Connectors, Electro-Mechanical. More details for CCR-50U Series-Failsafe can be seen below.