The D3C1725 from DiTom Microwave is a RF & Microwave Circulator with Frequency 1.7 to 2.5 GHz, Average Power Forward 150 W, Peak Power 500 W, Insertion Loss 0.6 dB, Isolation 17 dB. Tags: Coaxial Circulator. More details for D3C1725 can be seen below.