Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between NPN & PNP Transistor. The basic difference between NPN and PNP transistors is that in NPN transistor current moves from collector to emitter after application of positive supply to the base while in PNP configuration the current flow emitter to the collector after application of negative supply at the base terminal. Both NPN and PNP are types of BJT or bipolar junction transistors. It is a device used to regulate the current and can also use as a switch or amplifier.

In mostly circuitry NPN transistor is used since in NPN transistor current flows due to electrons while in PNP transistor current flows due to holes. Due to the fast movement of electrons high conduction occurs in the NPN. In today’s post, we will have a detailed look at both NPN and PNP transistors with the details and compare them to find their differences. So let’s get started with Difference Between NPN & PNP Transistor.

Difference Between NPN & PNP Transistor

NPN Transistor

• The types of BJT in which 2 N-type layers are separated with the Player is called NPN transistor.
• The full form of NPN transistor is Negative, Positive, and Negative.

• Its switching speed is high than the PNP.
• The minority carriers in this transistor are holes.
• The positive voltage is given at the collector of the NPN transistor.
• The direction of current flwo in NPN transistor is from Collector to Emitter.

 

• Its start operation after entering of electrons in the base.
• In this transistor current generated due to the movement of electrons.
• Its outer side current generated due to the movement of holes.
• In this transistor majority, charge carriers are electrons.
• Its emitter-based junction is a forward biased state.
• The collector-base junction is reverse biased.
• Less value of current flows from emitter-to-base.

PNP Transistor

• The type of transistor in which 2 P regions are separated by the single N-type substance.
• The full form of PNP is Positive Negative and Positive.
• It starts operation after the entrance of holes in the base.

• Its inner current generated due to the movement of holes.
• Its outer current generates due to the movement of electrons.

• Its switching speed is less than the NPN transistor.
• In this transistor, electrons are minority charge carriers.
• The voltage is given to the emitter of the transistor.
• The direction of the current flow in this transistor is from Emitter to Collector.
• Its Emitter Base Junction is forward biased state.
• Its Collector Base Junction is a reversed biased state.
• A small value of current flows from base to emitter.

 

 

That is a detailed post about the difference between NPN and PNP transistor if you have any queries ask in comments. Thanks for reading. Have a good day.