The JID0551T0629KM1 from JQL Electronics is a RF & Microwave Isolator with Frequency 551 to 629 MHz, Average Power Forward 100 W, Average Power Reverse 10 W, Insertion Loss 0.3 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for JID0551T0629KM1 can be seen below.