The CU1S1281AC-2655-00 from TDK is a RF & Microwave Circulator with Frequency 2.62 to 2.69 GHz, Bandwidth 70 MHz, Average Power Forward 20 W, Insertion Loss 0.3 dB, Isolation 21 dB. Tags: Surface Mount, Surface Mount Circulator. More details for CU1S1281AC-2655-00 can be seen below.