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Big 7 segment led display

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mouzid

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Hi edabaorder,
Could some one refert me to a PNP transistor capable of supporting the current demanded by the 7 Seg displayers. Each segment require 80mA so the max current needed per displayer is 640mA ?
 

pranam77

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You may use MJE2955 which will easily handle the said load. Cheers
 

    mouzid

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mouzid

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pranam77 said:
You may use MJE2955 which will easily handle the said load. Cheers
Actually, In my country lots of components are not available. People are only familiar with popular circuits like ULN, PICs, Maxims, BCXXX transistors and the 74 logic family.

I'm trying to lower the cost of the circuit by avoiding the use of sourcing aray darlington that's why I used PNP transistors.
Is there a PNP BC transistor supporting the high current ?
 

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