The RFCR2620 from RF-CI is a RF & Microwave Circulator with Frequency 1.8 to 2.01 GHz, Average Power Forward 200 W, Average Power Reverse 200 W, Peak Power 1000 W, Insertion Loss 0.25 to 0.35 dB. Tags: Drop-in Circulator. More details for RFCR2620 can be seen below.