The C-3S14U-30 from Teledyne Microwave Solutions is a RF & Microwave Circulator with Frequency 4.2 to 37 GHz, Average Power Forward 50 W, Peak Power 1000 W, Insertion Loss 0.6 dB, Isolation 60 dB. Tags: Coaxial Circulator. More details for C-3S14U-30 can be seen below.