The CCDU8U80228GH-XX from Cernex Inc is a RF & Microwave Circulator with Frequency 870 to 880 MHz, Average Power Forward 150 W, Insertion Loss 0.25 dB, Isolation 28 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-In, Drop-in Circulator. More details for CCDU8U80228GH-XX can be seen below.