The WVQ-1475M-50BW01 from Wevercomm is a RF & Microwave Circulator with Frequency 1.45 to 1.5 GHz, Average Power Forward 350 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -20 to 65 Degree C. Tags: Drop-in, Drop-in Circulator. More details for WVQ-1475M-50BW01 can be seen below.