The CU4S0701BT-1880-00 from TDK is a RF & Microwave Isolator with Frequency 1.85 to 1.91 GHz, Bandwidth 60 MHz, Average Power Forward 10 W, Average Power Reverse 2 W, Insertion Loss 0.8 dB. Tags: Surface Mount, Surface Mount Isolator. More details for CU4S0701BT-1880-00 can be seen below.