The WVQ-1950M-500BW01 from Wevercomm is a RF & Microwave Circulator with Frequency 1.7 to 2.2 GHz, Average Power Forward 100 W, Peak Power 100 W, Insertion Loss 0.5 to 1 dB, Isolation 20 dB. Tags: Drop-in, Drop-in Circulator. More details for WVQ-1950M-500BW01 can be seen below.