The CCES-3-6 from ESJ Technology is a RF & Microwave Circulator with Frequency 3 to 6 GHz, Average Power Forward 200 W, Insertion Loss 0.6 dB, Isolation 18 dB, Operating Temperature -30 to 70 Degree C. Tags: Coaxial Circulator. More details for CCES-3-6 can be seen below.