The DK1 Series from Ducommun is a RF Switch with Frequency DC to 40 GHz, Insertion Loss 0.30 to 1 dB, Isolation 50 to 70 dB, Supply Voltage 12 to 30 V, Switching Speed 15 MS. Tags: Module with Connectors, Electro-Mechanical. More details for DK1 Series can be seen below.