The JIC17K3T18K4S0 from JQL Electronics is a RF & Microwave Isolator with Frequency 17.3 to 18.4 GHz, Average Power Forward 5 W, Average Power Reverse 5 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC17K3T18K4S0 can be seen below.