The DNF2540-T0020 from Mercury Systems is a RF & Microwave Isolator with Frequency 940 to 961 MHz, Average Power 100 W, Average Power Forward 100 W, Peak Power Forward 1 W, Insertion Loss 0.3 dB. Tags: Drop-In, Drop-In Isolator. More details for DNF2540-T0020 can be seen below.