The DNF1900-T0110 from Mercury Systems is a RF & Microwave Circulator with Frequency 1.95 to 2.2 GHz, Bandwidth 251 MHz, Average Power Forward 100 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-in Circulator. More details for DNF1900-T0110 can be seen below.