The D3C5459 from DiTom Microwave is a RF & Microwave Circulator with Frequency 5.4 to 5.9 GHz, Average Power Forward 20 W, Peak Power 30 W, Insertion Loss 0.25 to 0.30 dB, Isolation 23 to 26 dB. Tags: Coaxial Circulator. More details for D3C5459 can be seen below.