The T-8S73U-20 from Teledyne Microwave Solutions is a RF & Microwave Isolator with Frequency 8 to 18 GHz, Average Power Forward 50 W, Average Power Reverse 2 W, Insertion Loss 0.7 dB, Isolation 17 dB. Tags: Module with Connector, Coaxial Isolator. More details for T-8S73U-20 can be seen below.