The JIC0345T0375S0 from JQL Electronics is a RF & Microwave Isolator with Frequency 345 to 375 MHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC0345T0375S0 can be seen below.