The CC 12.5-1 from TKI-Ferrit is a RF & Microwave Circulator with Frequency 11 to 14 GHz, Average Power Forward 1 W, Average Power Reverse 1 W, Insertion Loss 0.35 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Circulator. More details for CC 12.5-1 can be seen below.