The JCD2800T3300G2 from JQL Electronics is a RF & Microwave Circulator with Frequency 2.8 to 3.3 GHz, Average Power Forward 20 W, Insertion Loss 0.6 dB, Isolation 18 dB, Operating Temperature -30 to 70 Degree C. Tags: Drop-in Circulator. More details for JCD2800T3300G2 can be seen below.