A 70.8 KB PDF combining parts 10ETS08, 10ETS12 and 10ETS16, likely three voltage grades of one International Rectifier style rectifier series in a standard package. It is filed as a schematic but should read as a datasheet with ratings per variant, curves and mechanical dimensions. Use it to identify which grade is fitted, confirm pinout and orientation before desoldering, and select an equivalent when the original part has failed short or open.
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.