Reference sheet in PDF format for the 2SK2549 field-effect transistor, 373 KB in size. In the JIS numbering used by Japanese semiconductor makers, 2SK denotes an N-channel FET, which is all the file name reveals. A sheet of this kind is handy when diagnosing switching supplies, inverters or amplifier stages: it shows which leg is gate, drain and source, the voltage rating and typical characteristics. Confirm the part marking on the board before relying on these figures for 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.