The C-7S73U-20 from Teledyne Microwave Solutions is a RF & Microwave Circulator with Frequency 7.6 to 16.2 GHz, Average Power Forward 50 W, Peak Power 1000 W, Insertion Loss 0.7 dB, Isolation 17 dB. Tags: Coaxial Circulator. More details for C-7S73U-20 can be seen below.