The COCU8U80325G2 from Cernex Inc is a RF & Microwave Circulator with Frequency 860 to 890 MHz, Average Power Forward 100 W, Insertion Loss 0.3 dB, Isolation 25 dB, Operating Temperature -40 to 85 Degree C. Tags: Coaxial Circulator. More details for COCU8U80325G2 can be seen below.