A 59.2 KB PDF describing the 2sb1275 transistor, filed as a schematic though the name points to a single part. Under the Japanese JIS scheme, 2SB is the prefix for PNP bipolar transistors in the low-frequency category. The content should cover absolute maximum ratings, hFE classes, characteristic curves and the package outline. It is useful when a power or driver stage shows a shorted transistor and a suitable substitute is needed. Match the original pinout, package and ratings before soldering anything in.
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.