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.
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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.
diff. between npn and pnp transristor
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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.
PDEA-Philippine Drug Enforcement Agency PIA-Phillipine Information Agency PNP-Philippine National Police DEPED-Department of Education NBI-National Bureau of Investigation
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