The CU1S2252BT-2140-00 from TDK is a RF & Microwave Isolator with Frequency 2.11 to 2.17 GHz, Bandwidth 60 MHz, Average Power Forward 110 W, Average Power Reverse 100 W, Insertion Loss 0.25 dB. Tags: Surface Mount, Surface Mount Isolator. More details for CU1S2252BT-2140-00 can be seen below.