The COIU4U40323G1 from Cernex Inc is a RF & Microwave Isolator with Frequency 450 to 470 MHz, Average Power Forward 150 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -40 to 85 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for COIU4U40323G1 can be seen below.
