The JCD3300T3800G6 from JQL Electronics is a RF & Microwave Circulator with Frequency 3.3 to 3.8 GHz, Average Power Forward 60 W, Insertion Loss 0.4 dB, Isolation 21 dB, Operating Temperature -35 to 85 Degree C. Tags: Drop-in Circulator. More details for JCD3300T3800G6 can be seen below.