Component PDF for the 3SK285, 22.2 KB, placed in the schematic section of the index. Only the part number is given. The 3SK code under JIS marks an N-channel FET with four terminals, typically a dual-gate MOSFET serving as an RF amplifier or mixer in tuners. The document supports identifying pins, reading maximum drain-source voltage and power dissipation, and evaluating equivalents. Handle these parts with antistatic precautions, as MOSFET gates are sensitive to discharge.
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.