The RFCR6251 from RF-CI is a RF & Microwave Circulator with Frequency 790 to 960 MHz, Average Power Forward 200 W, Average Power Reverse 200 W, Peak Power 2000 W, Insertion Loss 0.40 to 0.50 dB. Tags: Coaxial Circulator. More details for RFCR6251 can be seen below.