The SM/SME Series from Ducommun is a RF Switch with Frequency DC to 26.5 GHz, Insertion Loss 0.25 to 1 dB, Isolation 55 to 75 dB, Supply Voltage 12 to 28 V, Switching Speed 15 to 35 mS. Tags: Module with Connectors, Electro-Mechanical. More details for SM/SME Series can be seen below.