NPN and PNP transistors function in essentially the same way. The power supply polarities are simply reversed for each type. The only major difference between the two types is that the NPN transistor has a higher frequency response than the PNP-because electron flow is faster than hole flow.
Therefore high frequency applications will utilize NPN transistors.
ITS AN NPN TRANSISTOR , GENERALLY USE AS A SWITCH GENREALLY IN COMMON EMITTER CONFIGURATON
When both junctions of an NPN transistor are reverse biased, the transistor is in the cutoff mode. In this mode, the transistor is effectively turned off, and it does not conduct current between the collector and emitter. As a result, the transistor behaves like an open switch, preventing current flow in the circuit.
The NPN transistor has its conduction curve where the base is more positive than the emitter, while the collector is also more positive than the emitter. The PNP transistor is exactly opposite, with its conduction curve where the base is less positive than the emitter, while the collector is also less positive than the emitter.
General Purpose Medium Power NPN Transistor
Emitter
NPN and PNP are transistor types. The difference in the way the layers of semiconductor material are doped with impurities.
There is no difference they perform the same functions.
Generally upstream is closer to the positive (+) voltage source. In the case of an NPN transistor upstream of the transistor is the part of the circuit from (+) to the NPN collector pin. Downstream of the transistor is from the NPN emitter pin to the ground / sink / negative (-) terminal.
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What is a 2N2369 transistor.It's an npn switching transistor.
It is an npn power transistor
npn is preferred to pnp since n-doping can be pushed to higher values without damaging silicon lattice. due to this fact, doped regions can be less resistive. difference between npn and pnp is becoming smaller and smaller, tho.
Mainly there are two types of transistors. They are BJT (Bipolar Junction Transistors) and FET(Field Effect Transisters). In BJT, there are two types called PNP and NPN. Actually NPN means a BJT transister.
2N2222
is zero
BT169 is neither an NPN nor a PNP transistor. BT169 is a thyristor, otherwise known as a silicon controlled rectifier.
ITS AN NPN TRANSISTOR , GENERALLY USE AS A SWITCH GENREALLY IN COMMON EMITTER CONFIGURATON