The JID0270T0320DM10 from JQL Electronics is a RF & Microwave Isolator with Frequency 270 to 320 MHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.6 dB, Isolation 18 dB. Tags: Drop-In, Drop-In Isolator. More details for JID0270T0320DM10 can be seen below.