PDF of 415 KB describing the 2SK2741, catalogued with schematics but in substance a part datasheet, as 2SK denotes an N-channel FET in JIS numbering. It should list breakdown voltage, continuous and pulsed drain current, on-resistance and threshold voltage alongside the package outline. These figures guide replacement choice and in-circuit testing of a suspected shorted transistor in power supplies or motor and lamp drivers. Only the part number appears in the name; confirm the device marking before ordering.
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.