The JID1250T1350M0 from JQL Electronics is a RF & Microwave Isolator with Frequency 1.25 to 1.35 GHz, Average Power Forward 2 W, Average Power Reverse 2 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for JID1250T1350M0 can be seen below.