The CU4S0506BC-806-00 from TDK is a RF & Microwave Circulator with Frequency 791 to 821 MHz, Bandwidth 30 MHz, Average Power Forward 5 W, Insertion Loss 1.2 dB, Isolation 11 dB. Tags: Surface Mount, Surface Mount Circulator. More details for CU4S0506BC-806-00 can be seen below.