The JIC17K7T19K7SFM1 from JQL Electronics is a RF & Microwave Isolator with Frequency 17.7 to 19.7 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Insertion Loss 0.45 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC17K7T19K7SFM1 can be seen below.