The C-2S63U-70 from Teledyne Microwave Solutions is a RF & Microwave Circulator with Frequency 2.6 to 5.2 GHz, Average Power Forward 50 W, Peak Power 1000 W, Insertion Loss 0.5 dB, Isolation 17 dB. Tags: Coaxial Circulator. More details for C-2S63U-70 can be seen below.