The AT11B-008010P-AF from Aaren Technology Ltd is a RF & Microwave Circulator with Frequency 0.8 to 1 GHz, Average Power Forward 200 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature 0 to 60 Degree C. Tags: Coaxial Circulator. More details for AT11B-008010P-AF can be seen below.