Series datasheet of 183 KB for the 10RIA family, filed under schematics. Because the name says series, the PDF likely covers several voltage grades under one document, with an ordering table to decode the full part number. The naming is consistent with International Rectifier products. Technicians use such a sheet to identify the exact grade printed on a component, check ratings and mounting details, and pick a suitable replacement for a failed device in a power circuit.
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.