The CQB360380AB from 3Rwave is a RF & Microwave Circulator with Frequency 3.6 to 3.8 GHz, Average Power Forward 80 W, Insertion Loss 0.3 to 0.35 dB, Isolation 22 to 25 dB, Return Loss 22 to 25 dB. Tags: Surface Mount Circulator. More details for CQB360380AB can be seen below.