The CSM 31840 from Microphase Corporation is a RF Detector with Bias Current 150 µA, Frequency 18 to 40 GHz, Max Input Power 20 to 26 dBm, Frequency Flatness ±2 dB, Voltage Sensitivity 900 to 1600 mV/mW. Tags: Connectorized, Diode Detector. More details for CSM 31840 can be seen below.