![]() NPN transistors behave like two NP junction diodes when connected back to back with the cathode diodes. In the PNP transistor, holes are major/important current carriers. In the NPN transistor, electrons are important current carriers. PNP transistors are used as a source to the current i.e., current flows out of the Collector. In PNP, we can differentiate it from NPN in the following way: NPN transistors are used as a sink to the current i.e., current flows to the Collector. It means the current points in the outward direction. NPN transistor can be better understood in the following way: The full form of PNP transistor is a Positive Negative Positive Transistor. The full form of NPN transistor is a Negative Positive Negative Transistor. To understand in detail, let’s distinguish between NPN and PNP transistor in tabular form:ĭistinguish Between NPN and PNP Transistor If the current points outwards, it is NPN, and if the current points inward, it is an NPN transistor. ![]() The basic difference between an NPN transistor and PNP transistor is indicated by the arrow of the current flow. ![]() The arrangement of NPN transistor is in such a way that two N-type doped semiconductors are separated by a thin layer of P-type doped semiconductor material embedded between them.ĭifferentiate Between NPN and PNP Transistorĭo you know what is the difference between NPN and PNP transistor? NPN is another BJT in which electrons are the major current carriers, while holes are minor. The arrangement of the PNP transistor is in such a way that the P-type doped semiconductor is separated by a thin layer of N-type doped semiconductor material. PNP is a Bipolar Junction Transistor or BJT in which holes are the major current carriers, while electrons are minor. ![]()
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