The DNF2540-T0120 from Mercury Systems is a RF & Microwave Circulator with Frequency 1.5 to 1.7 GHz, Bandwidth 201 MHz, Average Power Forward 100 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-in Circulator. More details for DNF2540-T0120 can be seen below.