Difference Between NPN and PNP Transistor

6 Differences Between NPN and PNP Transistor

S.NO.	NPN Transistor	PNP Transistor
1.	The main difference between NPN and PNP transistors is the direction of current flow through the device. In an NPN transistor, current flows from the collector to the emitter when the base is forward-biased.	In a PNP transistor, current flows from the emitter to the collector when the base is forward-biased.
2.	NPN transistors are typically used in common emitter or common collector configurations.	PNP transistors are used in common base or common emitter configurations.
3.	The base-emitter voltage of an NPN transistor is typically negative.	the base-emitter voltage of a PNP transistor is typically positive.
4.	NPN transistors are commonly used in digital circuits.	PNP transistors are less common due to their higher voltage drop.
5.	NPN transistors are more efficient at switching high-frequency signals.	PNP transistors are less efficient.
6.	NPN transistors are commonly used in circuits that require a positive voltage to turn them on.	PNP transistors are used in circuits that require a negative voltage to turn them on.

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