The C-2S63U-60 from Teledyne Microwave Solutions is a RF & Microwave Circulator with Frequency 2.0 to 4.0 GHz, Average Power Forward 50 W, Peak Power 1000 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for C-2S63U-60 can be seen below.