The CBF-7012 from Stellant Systems is a RF & Microwave Circulator with Frequency 7 to 12.4 GHz, Insertion Loss 0.4 to 0.8 dB, Isolation 17 to 35 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Circulator. More details for CBF-7012 can be seen below.