The UIYBCI5049B from UIY Inc. is a RF & Microwave Isolator with Frequency 1.5 to 3 GHz, Average Power Forward 100 to 200 W, Average Power Reverse 30 W, Insertion Loss 0.5 dB, Isolation 17 dB. Tags: Module with Connector, Coaxial Isolator. More details for UIYBCI5049B can be seen below.