The RFCR2514S from RF-CI is a RF & Microwave Circulator with Frequency 1.8 to 1.99 GHz, Average Power Forward 80 W, Average Power Reverse 100 W, Peak Power 500 W, Insertion Loss 0.25 to 0.35 dB. Tags: Surface Mount Circulator. More details for RFCR2514S can be seen below.