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What is PNP?

Updated: 10/25/2022
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12y ago

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it is a bipolar junction transistor having p-type emitter & collector terminal and ,

n-type base terminal .

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12y ago
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Q: What is PNP?
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What is the substitute for BC 212 transistor?

2n3906 pnp


What is the function of a pnp type sensor?

It allows your vehicle to start on when it is in park or neutral.


When a PNP transistor is connected in a circuit it can be used as a power amplifier because?

A PNP transistor has no advantage or disadvantage over an NPN transistor in its ability as an amplifier. Rather, the current-handling capacities of the transistor determine if it's usable as an amplifier.


How is the NPN transistor different from the PNP transistor?

"P" is for Positive and "N" is for Negative So basically put a PNP Transistor Would use N to Switch P, in the name "PNP" or "NPN" the first character is for the polarity of the Collector-pin, the second for the Base-Pin, and the third for the Emmiter-pin. So if you have a PNP Transistor you can`t just replace it with an NPN as the polarities differ. If you can find a way to change those polarities then sure it could work. The Collector-pin basically receives the bigger current. The Base-pin determines how much of that current will be transferred to the emmiter-pin. So in a PNP the base current could for example be 0V and the Collector 5V, this will allow a free flow of current from Collector to Emmiter, the usage of a transistor in many cases is to switch high current with lower current. The main difference is that a PNP transistor uses "holes" as carriers and an NPN transistor uses electrons as carriers (It is to be remembered that the flow of current is always in the direction opposite to that of the flow of electrons). The difference in the symbol for the two transistors are that the PNP transistor will have an arrow pointed to the base from the emitter, and the NPN has it pointing outside.


Why use a npn transistor in a common emitter bjt single stage amplifier circuit?

You can use an npn or a pnp bjt in a common emitter amplifier circuit. The decision of which one to use is based on whether you want the collector and base to be more positive (npn) or more negative (pnp) than the emitter.