The JIC1420T1550N20 from JQL Electronics is a RF & Microwave Isolator with Frequency 1.42 to 1.55 GHz, Average Power Forward 200 W, Average Power Reverse 200 W, Insertion Loss 0.3 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC1420T1550N20 can be seen below.