Only the code 35sgq060 is given for this 47.7 KB PDF, which is categorised as a schematic. The string resembles a discrete semiconductor part number; no device model, brand or board revision appears. Use it as a component reference: confirm pinout and package, look up ratings before choosing an alternative, and interpret diode-mode measurements when tracing a short on an input rail. Any PDF reader will display it. Check that the suffix printed on your part matches this one, since sibling codes in a series differ in voltage grade.
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.