Combined PDF of 267 KB covering two part numbers, 2SC2216 and 2SC2717, which suggests one datasheet shared by both devices. The 2SC prefix in the JIS system denotes NPN bipolar transistors, so the document should list pinouts, package outlines and electrical ratings for each. It is handy when confirming which variant sits on a board or whether one can replace the other. Compare the specific tables for the exact number printed on the part, as ratings and packages may differ between the two.
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.