➤Example: BC108 is a Silicon Audio Frequency Amplifier. Second letter indicates its use (C=Audio frequency amplifier, F = radio frequency amplifier, S = switching transistor). The first letter indicates semiconductor material (A=germanium, B=silicon) and It uses same identification codes as used for diodes but american system uses letters "2N" followed by serial number.Ĭonventional system two letters followed by serial number. As a switch it operates in either cutoff or saturation region.Īs an amplifier, Due to small changes in the base current, collector current will mimic input base signal with resistors, capacitors, inductors, diodes).Īnd also as an amplifier. They are active components unlike passive ones (e.g.It act as an insulator and a conductor.Common semiconductor materials in transistor construction are silicon and germanium. It is made of three layer semiconductor materials.The transistor is a solid state equivalent of a triode valve which was used in radio and early.ICs contain several thousands of transistors on a tiny slice of silicon. Transistors are manufactured as discrete components as well as incorporated in ICs.It describes different types of transistors viz. This article covers different types of transistors and mentions applications of these transistor types.
Different types of transistors | applications of transistor types
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