PDF datasheet identified only by the number 73218, 296 KB in size. The name looks like a manufacturer document number, a style Vishay uses for many of its MOSFET and power device sheets, but the exact part must be confirmed by opening the file. Expect a pinout, absolute maximum ratings, electrical characteristics and package dimensions. Once the part is identified, the sheet helps check pin functions on the board, test for shorts and select an equivalent replacement.
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 @ic_mosfet_pdf_datasheets. 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.