The CR-48K from Teledyne Relays is a RF Switch with Frequency DC to 40 GHz, Insertion Loss 0.2 to 1.1 dB, Isolation 70 to 90 dB, Supply Voltage 12 to 28 V, Coil Voltage 12 to 28 V. Tags: Module with Connectors, Electro-Mechanical. More details for CR-48K can be seen below.