The C-7S84U-40 from Teledyne Microwave Solutions is a RF & Microwave Circulator with Frequency 7.6 to 18.0 GHz, Average Power Forward 50 W, Peak Power 1000 W, Insertion Loss 1.6 dB, Isolation 32 dB. Tags: Coaxial Circulator. More details for C-7S84U-40 can be seen below.