Filed as a schematic, this small PDF of 60.3 KB is named only with the part code 1T410 and gives no device, brand or board number. The code looks like a discrete semiconductor designation, and the modest size suggests a short component document rather than a full board diagram. Open it in any PDF reader and use it to confirm pinout, package outline and electrical ratings before fitting a substitute. Check that the marking on the part on your board matches 1T410 exactly.
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.