The ACC-20090 from Atlantic Microwave is a RF & Microwave Circulator with Frequency 2.5 to 3.5 GHz, Average Power Forward 20 W, Insertion Loss 0.6 dB, Isolation 20 dB, Operating Temperature -10 to 40 Degree C. Tags: Coaxial Circulator. More details for ACC-20090 can be seen below.