Component reference for the 2SK1214 N-channel MOSFET, a 34.3 KB PDF in the Japanese 2SK family. The name offers only the part number, without package or maker, so confirm the marking on the transistor itself. Compact sheets like this usually give absolute maximum ratings, key characteristics and the pinout. It is handy when tracing a short in a power supply, checking gate, drain and source with a meter, and choosing a replacement that suits the original operating conditions.
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.