The JCC1920T2170N2 from JQL Electronics is a RF & Microwave Circulator with Frequency 1.92 to 2.17 GHz, Average Power Forward 20 W, Insertion Loss 0.35 dB, Isolation 22 dB, Operating Temperature -30 to 70 Degree C. Tags: Coaxial Circulator. More details for JCC1920T2170N2 can be seen below.