PDF of 295 KB for the 2N5961 discrete semiconductor, placed under schematics but presumably a datasheet. Only the part number appears in the name. Neighbouring 2N numbers often share one document covering a family of graded parts, so check that the table rows you read apply to this exact type. Expect pinout, package drawing, maximum ratings and characteristic curves. Use it when measuring a suspect part, confirming orientation or selecting a substitute.
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)