The UIYBDI3538D from UIY Inc. is a RF & Microwave Isolator with Frequency 1 to 1.3 GHz, Bandwidth 300 MHz, Average Power Forward 300 W, Average Power Reverse 30 W, Insertion Loss 0.4 dB. Tags: Drop-In, Drop-In Isolator. More details for UIYBDI3538D can be seen below.