The JID4380T5020VM1 from JQL Electronics is a RF & Microwave Isolator with Frequency 4.38 to 5.02 GHz, Average Power Forward 30 W, Average Power Reverse 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for JID4380T5020VM1 can be seen below.