The HX-T-3300-3800-20-50 from A-Info is a RF & Microwave Circulator with Frequency 3.3 to 3.8 GHz, Average Power Forward 50 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -40 to 70 Degree C. Tags: Coaxial Circulator. More details for HX-T-3300-3800-20-50 can be seen below.