The JIC0450T0520N10 from JQL Electronics is a RF & Microwave Isolator with Frequency 450 to 520 MHz, Average Power Forward 150 W, Average Power Reverse 75 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC0450T0520N10 can be seen below.