The JIC2500T3500S2 from JQL Electronics is a RF & Microwave Isolator with Frequency 2.5 to 3.5 GHz, Average Power Forward 20 W, Average Power Reverse 20 W, Insertion Loss 0.6 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC2500T3500S2 can be seen below.