PDF, 223 KB, named 30CTQ035, which follows the numbering of a discrete semiconductor rather than a board design, pointing to a component datasheet in the schematic section. No device, revision or brand appears in the name. Bench use usually means checking the package pinout and common terminal, reading forward voltage and maximum ratings, and confirming a substitute is suitable for the power stage it sits in. Open it in any PDF reader and match the code printed on the part, including the suffix, before replacing it.
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.