The JID4000T5000VM0 from JQL Electronics is a RF & Microwave Isolator with Frequency 4 to 5 GHz, Average Power Forward 30 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for JID4000T5000VM0 can be seen below.