The JID3500T4500VM0 from JQL Electronics is a RF & Microwave Isolator with Frequency 3.5 to 4.5 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Peak Power Forward 0.005 kW, Insertion Loss 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for JID3500T4500VM0 can be seen below.