Covering the 2SK2507, this 422 KB PDF belongs to the JIS family of N-channel field-effect transistors denoted by the 2SK prefix. Manufacturer, package and revision are not part of the file name and should be read from the document itself. It is most useful for identifying gate, drain and source before in-circuit or out-of-circuit testing, and for comparing breakdown voltage, current rating and on-resistance against a proposed substitute when the original part cannot be sourced.
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.
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