The ACC-20030 from Atlantic Microwave is a RF & Microwave Circulator with Frequency 950 MHz to 1.95 GHz, Average Power Forward 20 W, Insertion Loss 0.6 dB, Isolation 15 dB, Operating Temperature -20 to 55 Degree C. Tags: Coaxial Circulator. More details for ACC-20030 can be seen below.