The RFCR2923 from RF-CI is a RF & Microwave Circulator with Frequency 12 to 15 GHz, Average Power Forward 15 W, Average Power Reverse 25 W, Peak Power 500 W, Insertion Loss 0.4 to 0.5 dB. Tags: Drop-in Circulator. More details for RFCR2923 can be seen below.