The JI2C0406T0430N3 from JQL Electronics is a RF & Microwave Isolator with Frequency 406 to 430 MHz, Average Power Forward 250 W, Average Power Reverse 30 W, Insertion Loss 0.5 dB, Isolation 50 dB. Tags: Module with Connector, Coaxial Isolator. More details for JI2C0406T0430N3 can be seen below.