The CU4S0401AT-2350-00 from TDK is a RF & Microwave Isolator with Frequency 2.3 to 2.4 GHz, Bandwidth 100 MHz, Average Power Forward 2.5 W, Average Power Reverse 0.6 W, Insertion Loss 0.75 dB. Tags: Surface Mount, Surface Mount Isolator. More details for CU4S0401AT-2350-00 can be seen below.