The UIYCI5356A from UIY Inc. is a RF & Microwave Isolator with Frequency 300 MHz to 1.5 GHz, Average Power Forward 300 to 500 W, Average Power Reverse 30 W, Insertion Loss 0.4 to 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for UIYCI5356A can be seen below.