The CCR-39U series from Teledyne Relays is a RF Switch with Frequency DC to 52 GHz, Insertion Loss 0.2 to 2.3 dB, Isolation 50 to 70 dB, Supply Voltage 0 to 5.5 V, Actuator Voltage 12 to 28 V. Tags: Module with Connectors, Electro-Mechanical, Multi Configuration. More details for CCR-39U series can be seen below.