The MMCCC600A from Mesa Microwave is a RF & Microwave Circulator with Frequency 70 to 800 MHz, Bandwidth 10 to 730 MHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.6 to 1.2 dB. Tags: Module with Connectors, Coaxial Circulator. More details for MMCCC600A can be seen below.