The BT-10M18 from American Microwave Corporation is a Bias Tee with Frequency 10 MHz to 20 GHz, Max. Voltage 50 V, Max Current 1 A (0.001 A), Insertion Loss 1.2 to 1.5 dB, Isolation 20 to 30 dB. Tags: Module with Connector. More details for BT-10M18 can be seen below.