The SMD-1640-20-K from Fairview Microwave is a RF Detector with Frequency 16 to 40 GHz, Max Input Power 17 dBm, Dynamic Range -20 to 0 dBm, Supply Voltage 15 V, Current 66 mA. Tags: Module with Connectors, Surface Mount, Threshold Detector. More details for SMD-1640-20-K can be seen below.