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BC549 Transistor Introduction


BC549 is an NPN transistor, so when the base pin is grounded, the collector and emitter will remain open (reverse biased); when the signal is provided to the base pin, the collector and emitter will be closed (positive To the offset).

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BC548 Transistor Introduction

BC548 is another widely used general-purpose transistor, which also has many excellent characteristics. It can be used in its electronic circuits, and it can handle a maximum current of 500 mA. Enough to drive many other components, such as ICs, other transistors, parts of circuits, relays, LEDs, etc.

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