Component datasheet covering the IRFP240 MOSFET, supplied as a 104 KB PDF readable in any PDF viewer. Such sheets normally list breakdown voltage, drain current, switching times, thermal resistance and the package drawing with pin order. It is handy when testing a suspected shorted output device in an audio amplifier or switching supply, or when picking a substitute from the bin. Match the printed marking on the transistor and its manufacturer before trusting every value, and mind that complementary or similarly numbered parts are not interchangeable.
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.