The RFCR2861 from RF-CI is a RF & Microwave Circulator with Frequency 3.3 to 3.8 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Peak Power 1000 W, Insertion Loss 0.25 to 0.35 dB. Tags: Drop-in Circulator. More details for RFCR2861 can be seen below.