Datasheet-type PDF of 425 KB for the 2SK2376, catalogued as a schematic. The 2SK prefix comes from the Japanese JIS scheme and identifies N-channel FETs; the name gives no manufacturer, package or ratings. Technicians use such a document to confirm pinout, read breakdown voltage, drain current and on-resistance, and study switching curves when deciding whether an alternative MOSFET can stand in for a failed original. Any standard PDF viewer will open it.
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)