The CU4S0506AT-2535-00 from TDK is a RF & Microwave Isolator with Frequency 2.5 to 2.57 GHz, Bandwidth 70 MHz, Average Power Forward 5 W, Average Power Reverse 2 W, Insertion Loss 0.6 dB. Tags: Surface Mount, Surface Mount Isolator. More details for CU4S0506AT-2535-00 can be seen below.