The JID0773T0803M5 from JQL Electronics is a RF & Microwave Isolator with Frequency 773 to 803 MHz, Average Power Forward 50 W, Average Power Reverse 50 W, Peak Power Forward 0.5 kW, Insertion Loss 0.25 dB. Tags: Drop-In, Drop-In Isolator. More details for JID0773T0803M5 can be seen below.