The 990-330380-301 from M2 Global Technology is a RF & Microwave Circulator with Frequency 3.3 to 3.8 GHz, Average Power Forward 50 W, Insertion Loss 0.3 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-in Circulator. More details for 990-330380-301 can be seen below.