English-language datasheet, going by the _E suffix, for the 2SB1440, stored as a 41 KB PDF and filed under schematics. The JIS designation 2SB means a PNP transistor for low-frequency circuits. Only the part number is given, with no maker or revision. Such a sheet typically lists absolute maximum ratings, electrical characteristics and an outline drawing, letting a technician verify pinout, test a suspect device in circuit and select an equivalent with matching ratings and footprint.
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.