The JCD9000T10K5G1 from JQL Electronics is a RF & Microwave Circulator with Frequency 9 to 10.5 GHz, Average Power Forward 10 W, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature -40 to 75 Degree C. Tags: Drop-in Circulator. More details for JCD9000T10K5G1 can be seen below.