Datasheet for the 2SD612K transistor, a 303 KB PDF listed in the schematic section. The K at the end belongs to the type number and indicates a variant of the 2SD612 base design, so the details should be read for that exact suffix. Under JIS conventions 2SD identifies an NPN bipolar transistor for low-frequency service. The sheet is useful for confirming lead arrangement, voltage and current limits and gain classes before replacing a failed device in an amplifier or power circuit.
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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