The JCC2100T2500N2 from JQL Electronics is a RF & Microwave Circulator with Frequency 2.1 to 2.5 GHz, Average Power Forward 20 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -30 to 70 Degree C. Tags: Coaxial Circulator. More details for JCC2100T2500N2 can be seen below.