The UIYBDI3538E from UIY Inc. is a RF & Microwave Isolator with Frequency 1.225 to 1.875 GHz, Bandwidth 650 MHz, Average Power Forward 300 W, Average Power Reverse 30 W, Insertion Loss 0.6 dB. Tags: Drop-In, Drop-In Isolator. More details for UIYBDI3538E can be seen below.