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All 2Nxx series transistors (except FET's) are EBC. All 2Sxx series transistors are ECB. This is general rule for TO-92 package
. Also 2SAxx are always PNP. All 2SCxx are always NPN. There are a just a few exceptions to this for special types of transistors.
Suppose you see transistor A733, what is she? Just put 2S in front, now you know it is 2SA733 PNP transistor with pinouts ECB. Likewise C945 for example, 2SC945 NPN pinouts ECB. It's that simple.
thanks dbanner i have used c### and a### a lot over the years but never connected the dots i just whack em on the peak atlas when unsure but now i will know superb contribution.
i desolder/take the transistors from PCBs and i do not see another tipo in them. just only THAT manufacturer REALLY uses.
there are only 50-60 tipo, not more. not millions how you fantazy yourself. i have datasheets from 199x year and two fatty paper books if you think i am dumper.
my practic and experience is so much you did not see in a sleep.
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