The DNF2540-T0125 from Mercury Systems is a RF & Microwave Circulator with Frequency 1.6 to 1.66 GHz, Bandwidth 60 MHz, Average Power Forward 100 W, Insertion Loss 0.3 dB, Isolation 23 dB. Tags: Drop-in Circulator. More details for DNF2540-T0125 can be seen below.