The ETCE0185 from Nova Microwave is a RF & Microwave Circulator with Frequency 1.7 to 2 GHz, Average Power Forward 250 W, Average Power Reverse 100 W, Insertion Loss 0.23 dB, Isolation 21 dB. Tags: Drop-In, Drop-in Circulator. More details for ETCE0185 can be seen below.