The SMC-8010 from Sierra Microwave Technology is a RF & Microwave Circulator with Frequency 8 to 10 GHz, Average Power Reverse 2 to 150 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -54 to 85 Degree C. Tags: Coaxial Circulator. More details for SMC-8010 can be seen below.