The CR-49K Series from Teledyne Storm Microwave is a RF Switch with Frequency DC to 40 GHz, Insertion Loss 0.2 to 1.50 dB, Isolation 60 to 80 dB, Supply Current 3.2 mA to 80 µA (Control), Control Voltage 0.7 to 5.5 V. Tags: Module with Connectors, Electro-Mechanical, Multi Configuration. More details for CR-49K Series can be seen below.