The PE83CR1033 from Pasternack Enterprises Inc is a RF & Microwave Circulator with Frequency 3 to 5 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.6 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Circulator. More details for PE83CR1033 can be seen below.