The ACC-20050 from Atlantic Microwave is a RF & Microwave Circulator with Frequency 1.2 to 1.7 GHz, Average Power Forward 20 W, Insertion Loss 0.6 dB, Isolation 20 dB, Operating Temperature -30 to 65 Degree C. Tags: Coaxial Circulator. More details for ACC-20050 can be seen below.