The JID1420T1550M20 from JQL Electronics is a RF & Microwave Isolator with Frequency 1.42 to 1.55 GHz, Average Power Forward 200 W, Average Power Reverse 200 W, Insertion Loss 0.25 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for JID1420T1550M20 can be seen below.