Reference sheet for the 2SK2382, a 412 KB PDF placed under schematics, though the JIS-format number marks it as a datasheet for an N-channel FET. The name contains no other information, so check the document for package, voltage class and maker. It is mainly used to confirm pin order before soldering, to compare breakdown voltage, current and RDS(on) against a substitute, and to understand normal behaviour when testing a suspect transistor on the bench.
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)