![]() The P-type region is sandwiched between these two N-Type regions.NPN transistor consists of 3 regions, two of them are constructed using N-type semiconductor material while the third one is of P-Type Semiconductor.Now let's have a look at the Construction of NPN Transistor: Below figure shows the NPN transistor's Symbol:.These electronic symbols prove helpful in designing circuit diagrams especially block diagrams of electronic models. As we use logos to represent companies, similarly in electronics, specific symbols are used to represent components.Let's have a look at the symbol of NPN transistor: (We will cover it in detail in the working section) These terminals are used for external connection with the circuit and a small current at the base terminal is used to control the large current at the collector and emitter side.NPN transistor package comes with three terminals named:.In NPN transistors, the majority charge carriers are electrons and thus conduction is carried out by the flow of electrons from emitter to collector.NPN transistor is a bipolar junction transistor(BJT), composed of 3 semiconductor layers in a way that one P-doped layer(Base) is sandwiched between two N-doped layers(Emitter & Collector) and is mainly used for current amplification and fast switching.Both transistors are different in terms of their electrical composition and construction, however, both are used for amplification and switching purposes in one way or the other. It is a bipolar junction transistor mainly used for current amplification and switching purposes.Ä«JTs (Bipolar Junction Transistor) are divided into two types i.e. In this tutorial, we'll look at the NPN transistor, how it works, circuit diagram, output characteristics curve, and applications. Today, I am going to give you a detailed Introduction to NPN transistor.
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