The D4I0120 from DiTom Microwave is a RF & Microwave Isolator with Frequency 1.7 to 2 GHz, Average Power 150 W, Average Power Forward 150 W, Average Power Reverse 2 W, Peak Power Forward 0.35 kW. Tags: Module with Connector, Coaxial Isolator. More details for D4I0120 can be seen below.