The RFCR3409 from RF-CI is a RF & Microwave Circulator with Frequency 1.3 to 1.7 GHz, Average Power Forward 200 W, Average Power Reverse 200 W, Peak Power 1000 W, Insertion Loss 0.50 to 0.60 dB. Tags: Coaxial Circulator. More details for RFCR3409 can be seen below.