The JCD2100T2300G2 from JQL Electronics is a RF & Microwave Circulator with Frequency 2.1 to 2.3 GHz, Average Power Forward 20 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -30 to 70 Degree C. Tags: Drop-in Circulator. More details for JCD2100T2300G2 can be seen below.