Datasheet-style PDF of 104 KB for the 2SK1433, placed in the schematic category of the index. JIS numbering assigns the 2SK prefix to N-channel FETs, which tells you the device family but not its maker, package or ratings; those must be taken from the document. Before replacing such a transistor, compare drain-source voltage, continuous current, gate threshold and pinout with the candidate part, and check the printed marking on the original component so the right sheet is being used.
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.