The DCF1300-T0520 from Mercury Systems is a RF & Microwave Isolator with Frequency 5.8 to 6.5 GHz, Average Power 10 W, Average Power Forward 35 W, Average Power Reverse 2 W, Peak Power Forward 100 W. Tags: Drop-In, Drop-In Isolator. More details for DCF1300-T0520 can be seen below.