Datasheet PDF, 73.5 KB, for the 2SB1405. The name states just the part number, without manufacturer or edition. By JIS convention the 2SB prefix denotes a PNP transistor of the low-frequency class, commonly used in drivers, regulators and output stages. At the repair bench it answers basic questions: which leg is the collector, what package outline applies, what voltages and currents the device tolerates, and whether a proposed substitute is close enough. Verify the body marking before ordering parts.
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.
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