These two transistors work as current-controlled devices.Both transistors are made up of P-type and N-type semiconductors. The NPN and PNP transistors are semiconductor components of BJT.The NPN and PNP transistors are the parts of the bipolar junction transistor (BJT). Similarities of NPN Transistor and PNP Transistor Otherwise, both transistors have similarities. It concludes that the main difference between NPN and PNP transistors is the use of biasing and current directions. This is all about the NPN vs PNP transistors. In the NPN transistor symbol, the emitter terminal represents by the outward arrow. The symbolic structures of NPN and PNP are almost the same. It requires more time for switching operations as compared to the NPN transistor. It requires less time for switching operations as compared to the PNP transistor. It is used for low switching in electronic circuits or gadgets. It is used for fast switching in electronic circuits or gadgets. The PNP transistor is not much used as compare to the NPN transistor. The NPN transistor is widely used, due to the presence of electrons as the majority charge carriers. The PNP transistors are called ‘Sourcing sensors’. Sometimes, the NPN transistors are called ‘Sinking sensors’. low signal) connects to the base terminal of the PNP transistor, the PNP transistor is activated. high signal) connects to the base terminal of the NPN transistor, the NPN transistor is activated. The PNP requires a low signal at the base terminal. The NPN transistor requires a high signal at the base terminal. In the PNP transistor, current flows from the emitter (E) terminal to the collector (C) terminal. In the NPN transistor, current flows from the collector (C) terminal to the emitter (E) terminal. The minimum number of electrons is present. This transistor contains a large number of holes. This transistor contains a large number of electrons. The base terminal is made of N-type material. The base terminal is made of P-type material. The PNP transistor is a semiconductor device that consists of a single N-type layer and two P-type layers of semiconductor.įrom the N-type materials, emitter and collector terminals of the NPN transistor are formed.įrom the P-type materials, emitter, and collector terminals of the PNP transistor are formed. The NPN transistor is a semiconductor device that consists of a single P-type layer and two N-type layers of semiconductor. The PNP transistor stands for the ‘positive negative positive’ transistor. The NPN transistor stands for the ‘negative positive negative’ transistor. Similarities of NPN Transistor and PNP Transistorĭifference between NPN and PNP Transistors #.Difference between NPN and PNP Transistors.
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