The UIYBDI3538B from UIY Inc. is a RF & Microwave Isolator with Frequency 400 to 470 MHz, Bandwidth 70 MHz, Average Power Forward 300 W, Average Power Reverse 30 W, Insertion Loss 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for UIYBDI3538B can be seen below.