The JCD1300T1400G6 from JQL Electronics is a RF & Microwave Circulator with Frequency 1.3 to 1.4 GHz, Average Power Forward 60 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-in Circulator. More details for JCD1300T1400G6 can be seen below.