The UIYBDI2528B from UIY Inc. is a RF & Microwave Isolator with Frequency 3.5 to 6.5 GHz, Bandwidth 3000 MHz, Average Power Forward 100 W, Average Power Reverse 20 W, Insertion Loss 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for UIYBDI2528B can be seen below.