The BT-50K18 Option PS, RES from American Microwave Corporation is a Bias Tee with Frequency 50 KHz to 18 GHz, Max. Voltage 15 V, Insertion Loss 0.75 to 1 dB, Isolation 60 dB, Operating Temperature -55 to 85 Degree C. Tags: Module with Connector. More details for BT-50K18 Option PS, RES can be seen below.