The 2N5886 is covered by this 41.8 KB PDF, catalogued as a schematic but probably the component datasheet. The name states no maker, package or edition. Under JEDEC numbering a 2N prefix means a two-junction semiconductor, most often a bipolar transistor. Use the sheet to confirm pin assignment and look up maximum collector voltage, current and dissipation where given. It also lets you check that a replacement shares the same case and mounting before you fit 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.