The JCC1000T2000N3 from JQL Electronics is a RF & Microwave Circulator with Frequency 1 to 2 GHz, Average Power Forward 30 W, Insertion Loss 0.7 dB, Isolation 15 dB, Operating Temperature -15 to 60 Degree C. Tags: Coaxial Circulator. More details for JCC1000T2000N3 can be seen below.