Transistor question

Kolie Kay · 2003-09-25T15:06:43+00:00

I have a 2n2222 transistor ( marked NTE 590a). I am trying to figureout which leads are which. I tested with diode mode all 6combinations, and found that, flat side up, the right most lead isthe base. How do i figure out the other 2? And in a schematic with atransistor, the arrow lead is always the emitter correct?- ---

Sep 25, 2003 2 Replies

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Kolie Kay 22 years ago

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Alan Kilian 22 years ago

The arrow is always the emitter on this type of transistor. On NPN, the arrow points "out" on PNP, it points in, so you should be able to use this page to get the pinout.

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Kolie Kay 22 years ago

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