The JIC0223T0253S0R from JQL Electronics is a RF & Microwave Isolator with Frequency 223 to 253 MHz, Average Power Forward 2 W, Average Power Reverse 2 W, Insertion Loss 0.3 dB, Isolation 25 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC0223T0253S0R can be seen below.