Named simply for part 10YQ045, this 48.3 KB PDF is best read as a component datasheet rather than a board drawing. A separate 10YQ045C file of identical size exists, so check whether this one covers both variants. The numbering follows International Rectifier conventions for rectifier diodes. It is useful for checking reverse voltage and current ratings, identifying pins and package, and choosing a substitute when a rectifier tests shorted in diode mode on a multimeter.
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.
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