Datasheet-style PDF, 96.2 KB, named only for the 2SC3089 and catalogued as a schematic. The 2SC prefix follows the Japanese JIS convention for NPN bipolar transistors aimed at high-frequency circuits. Use it to check the lead order before soldering in a replacement. It also gives the collector-emitter voltage, collector current and power limits, and helps when reading hFE classification letters. Neither the maker nor the package is stated, so verify the marking on the actual component before relying on it.
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.