The JID0380T0420KM10A3 from JQL Electronics is a RF & Microwave Isolator with Frequency 380 to 420 MHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.3 dB, Isolation 21 dB. Tags: Drop-In, Drop-In Isolator. More details for JID0380T0420KM10A3 can be seen below.