The JID0250T0300UM0L from JQL Electronics is a RF & Microwave Isolator with Frequency 250 to 300 MHz, Average Power Forward 1 W, Average Power Reverse 1 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Drop-In, Drop-In Isolator. More details for JID0250T0300UM0L can be seen below.