Datasheet PDF for 5HN02N, roughly 41 KB. The name gives only the part designation, with N most likely marking a package option, and no board, model or brand. Such a document typically shows terminal layout, maximum voltage and current, on-state characteristics and dimensions. Use it to verify a suspect component during fault finding or to confirm a substitute fits the pads and ratings. Any PDF reader opens it; cross-check the code printed on the physical part 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.