Transistors that are made completely with metal bodies have been available for quite a long time. The 2N3053 transistor is one of them and is a very popular metal can transistor that is available in the TO-39 package, which is bigger as compared to the TO-18. The transistor has quite interesting characteristics so it is capable of achieving stably in very low & high-temperature conditions. This transistor is mainly designed to utilize in the applications of power oscillators, audio … [Read more...]

PNP transistor is one type of transistor where one n-type material is doped with two p-type materials. This transistor is controlled through the current supply where both the collector & emitter terminals are controlled through the small amount of current at the base terminal. The schematic symbol of this transistor is similar to the NPN transistor but the only difference is the arrow direction on the emitter terminal. In PNP type, the arrow direction is inward whereas in PNP, the arrow … [Read more...]

BC639 is a BJT with high current gain and this transistor belongs to the NPN transistor family. This transistor is an extremely adaptable device, used to switch fairly high voltage devices which normally use 60V to 120V DC. This transistor uses a TO-92 package and is the most common type of transistor package mainly utilized in low-power devices. This package is made up of plastic or epoxy material because these materials are less weight and also have high heat resistance properties. This … [Read more...]