The SMC-0810 from Sierra Microwave Technology is a RF & Microwave Circulator with Frequency 800 MHz to 1 GHz, Average Power Reverse 2 to 150 W, Insertion Loss 0.5 dB, Isolation 17 dB, Operating Temperature -30 to 60 Degree C. Tags: Coaxial Circulator. More details for SMC-0810 can be seen below.