anton12 Posted June 11, 2006 Report Share Posted June 11, 2006 Hi i need some low power transistor that his base curent somthink about 30-40 ma and the collector curent 200-300ma.can somone help me? Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 11, 2006 Report Share Posted June 11, 2006 A transistor with a 300mA collector current and a 40mA base current has a current gain of only 7.5. This is an extremely low gain number for a low power transistor.I would use a 2N4401 NPN transistor for a 300mA collector current. Its base current will be somewhere between 1.5mA and 6mA. Quote Link to comment Share on other sites More sharing options...
anton12 Posted June 12, 2006 Author Report Share Posted June 12, 2006 thank you i will try :D Quote Link to comment Share on other sites More sharing options...
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