The D3C1214 from DiTom Microwave is a RF & Microwave Circulator with Frequency 12.75 to 14.5 GHz, Average Power Forward 10 W, Peak Power 30 W, Insertion Loss 0.3 dB, Isolation 23 dB. Tags: Coaxial Circulator. More details for D3C1214 can be seen below.