The CHB180188AS from 3Rwave is a RF & Microwave Circulator with Frequency 1805 to 1880 MHz, Average Power Forward 200 W, Insertion Loss 0.15 to 0.2 dB, Isolation 25 to 26 dB, Return Loss 25 to 26 dB. Tags: Surface Mount Circulator. More details for CHB180188AS can be seen below.