Difference between NPN and PNP transistors

 

Difference between NPN and PNP transistors

One of the major differences between the NPN and the PNP transistor indicates that in the NPN transistor current flows between collector and emitter when the base is positively powered, while in the PNP transistor the load carrier flows from the emitter to the collector when the base receives negative power. NPN and PNP transistors are differentiated below in the comparison table taking into account various other factors.

Both NPN and PNP are bipolar transistor junction. These are the current control devices used primarily for signal switching and amplification. Usually, the NPN transistor is used in the circuit because in the NPN transistor the conduction current is mostly electrons, while in the PNP transistor the conduction current comes from the holes. Since electrons are more mobile, NPN has high conduction.

The letters PNP and NPN indicate the voltage required by the emitter, collector and base of the junction transistor. Both NPN and PNP transistors are made of different materials. The current they develop also differs. Sometimes when the voltage applied to the emitter, the electrons cross the base junction and reach the collector region. This happens because the base of NPN and PNP transistors is very thin and lightly doped.

 

 

Difference between NPN and PNP transistors

One of the major differences between the NPN and the PNP transistor indicates that in the NPN transistor current flows between collector and emitter when the base is positively powered, while in the PNP transistor the load carrier flows from the emitter to the collector when the base receives negative power. NPN and PNP transistors are differentiated below in the comparison table taking into account various other factors.

Both NPN and PNP are bipolar transistor junction. These are the current control devices used primarily for signal switching and amplification. Usually, the NPN transistor is used in the circuit because in the NPN transistor the conduction current is mostly electrons, while in the PNP transistor the conduction current comes from the holes. Since electrons are more mobile, NPN has high conduction.

The letters PNP and NPN indicate the voltage required by the emitter, collector and base of the junction transistor. Both NPN and PNP transistors are made of different materials. The current they develop also differs. Sometimes when the voltage applied to the emitter, the electrons cross the base junction and reach the collector region. This happens because the base of NPN and PNP transistors is very thin and lightly doped.