The COCU4U60325G-XX from Cernex Inc is a RF & Microwave Circulator with Frequency 400 to 600 MHz, Bandwidth 30 MHz, Average Power Forward 150 W, Insertion Loss 0.3 dB, Isolation 25 dB. Tags: Coaxial Circulator. More details for COCU4U60325G-XX can be seen below.