Transistor Museum™ Store Historic Semiconductor Fact Sheet Transitron 2N343 Silicon
NPN Grown Junction
Transistor
TRANSISTOR MUSEUM™ Classic Semiconductors
Transitron 2N343
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Copyright © 2012 by Jack Ward
Silicon
NPN Grown Junction
Transistor Vintage: 1950s/1960s Use: Audio/Military
2N343 Lead Configuration Bottom View
Typical early 1960s Transitron 2N343
transistors were marked as shown above the “6123” date code denotes 1961 week 23.
Historical Background: Several companies were leaders in producing the first types of silicon
transistors in the 1950s.
Shown above is a section of the 1960 Transitron catalogue, with the claim “Industry’s broadest line of silicon ...