Datasheet in PDF for the IRFP1405, an N-channel power MOSFET in a TO-247 package. The file name gives only the part number, so take the voltage, current and on-resistance figures from the document. Low-voltage, very high-current MOSFETs of this sort are found in automotive power inverters, motor controllers and high-current DC switching. A technician consults the sheet for gate threshold, gate charge, avalanche rating and pinout before substituting another type. Check the driver stage and any parallel devices before replacing a shorted one.
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.