Compact 23.8 KB PDF for the 2SA1870 PNP transistor, named in lowercase with only the part number. Under JIS naming, 2SA denotes a PNP bipolar device, so expect a short datasheet or summary sheet rather than a device schematic. Such a document is handy for checking lead order, case type and maximum ratings before soldering in a replacement. Because the file is small, it may contain fewer details than a full manufacturer datasheet. A separate 2SA1870 file with a 1-2 suffix also exists for cross-checking.
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.