The 890-193199-301 from M2 Global Technology is a RF & Microwave Circulator with Frequency 1.93 to 1.99 GHz, Average Power Forward 150 W, Insertion Loss 0.25 dB, Operating Temperature -20 to 70 Degree C. Tags: Drop-in Circulator. More details for 890-193199-301 can be seen below.