The JCC6000T12K0S2 from JQL Electronics is a RF & Microwave Circulator with Frequency 6 to 12 GHz, Average Power Forward 20 W, Insertion Loss 0.6 dB, Isolation 16 dB, Operating Temperature -40 to 75 Degree C. Tags: Coaxial Circulator. More details for JCC6000T12K0S2 can be seen below.