The JIC15K5T17K5S1 from JQL Electronics is a RF & Microwave Isolator with Frequency 15.5 to 17.5 GHz, Average Power Forward 65 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC15K5T17K5S1 can be seen below.