Named 30CTQ060 and stored as a 245 KB PDF, this entry is listed as a schematic but the title matches the pattern of a discrete semiconductor part code, making a datasheet the likely content. Nothing in the name identifies a host device or revision. Typical bench use is checking pinout, package drawing and ratings before fitting a replacement into a supply circuit, or confirming which leg is common when testing with a multimeter in diode mode. Verify the component marking on the board matches this code first.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.