The HD32985 from HD Communications Corp is a RF & Microwave Circulator with Frequency 0.4 to 0.47 GHz, Average Power 150 W, Insertion Loss 0.35 dB, Isolation 20 dB, Operating Temperature -30 to 70 Degree C. Tags: TAB, Drop-in Circulator. More details for HD32985 can be seen below.