The 102 KB PDF 2SC5041 is indexed under schematics, though its name is just a 2SC part number, the Japanese JIS code for an NPN bipolar transistor, so treat it as a datasheet. Brand, package and version are not stated. It serves to identify base, collector and emitter pins, read voltage, current and power limits, and compare candidate replacements. Check the code on the component itself against this number before relying on the specifications in a repair.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)