The JID0320T0380KM1 from JQL Electronics is a RF & Microwave Isolator with Frequency 320 to 380 MHz, Average Power Forward 10 W, Average Power Reverse 5 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for JID0320T0380KM1 can be seen below.