The PE83CR1003 from Pasternack Enterprises Inc is a RF & Microwave Circulator with Frequency 1.7 to 2.2 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Peak Power 100 W, Insertion Loss 0.4 dB. Tags: Coaxial Circulator. More details for PE83CR1003 can be seen below.