The CU4S0506BC-725-00 from TDK is a RF & Microwave Circulator with Frequency 703 to 748 MHz, Bandwidth 45 MHz, Average Power Forward 5 W, Insertion Loss 1.2 dB, Isolation 12 dB. Tags: Surface Mount, Surface Mount Circulator. More details for CU4S0506BC-725-00 can be seen below.