The UIYDI1925A from UIY Inc. is a RF & Microwave Isolator with Frequency 800 MHz to 4.2 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.3 to 0.5 dB, Isolation 18 to 23 dB. Tags: Drop-In, Drop-In Isolator. More details for UIYDI1925A can be seen below.