The CU1S2252AT-1900-00 from TDK is a RF & Microwave Isolator with Frequency 1.88 to 1.92 GHz, Bandwidth 40 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 CU1S2252AT-1900-00 can be seen below.