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...]

There are different types of Power Transistors from TIP series like; TIP41 (NPN), TIP31(NPN), TIP42 (PNP), TIP2955 (PNP). TIP122 (NPN), TIP127 (PNP). The term TIP stands for “Texas Instruments Power” and is a series of BJTs manufactured by Texas Instruments. This series was launched in the 1960s and is still used today because of its durability, simplicity & simple use. This article provides brief information on one of the TIP series transistors namely; the TIP127 Darlington transistor, pin c … [Read more...]

The low-power and general-purpose NPN silicon BJTs like; BC109, BC107, and BC108 are frequently found in most electronic devices and equipment. These transistors were produced by Philips & Mullard Ltd in the year 1963 & launched in April 1966. At first, the range of these transistors is expanded ultimately in TO-18 metal packages to include other types of packages, high voltage ratings, better gain groupings selection & complementary PNP types. Some electronics manufacturers have … [Read more...]

The MJE13005 is a high-voltage & high-speed power transistor that belongs to the family of NPN transistors. The MJE13005 transistor is a semiconductor device that is made up of silicon (Si) material. This transistor is a current-controlled device that includes three terminals; an emitter, base, and collector. This transistor supports loads up to 4A & the voltage from the emitter base is 9V which is the necessary voltage for transistor action. This article provides brief information on … [Read more...]

Darlington pair is a multi-transistor or Darlington configuration in electronics which includes two BJTs like PNP or NPN. This transistor is named after its inventor name “Sidney Darlington”. It is a special arrangement of two PNP/NPN standard BJTs connected together. The emitter terminal of one transistor is connected to the base terminal of the other transistor so that the flow of current can be amplified through the primary transistor and further, it is amplified by the secondary transistor. I … [Read more...]

Generally, BJTs are significant electronic components that work as basic building blocks within modern electronic circuits. These transistors are categorized into PNP and NPN transistors. In ICs or discrete components, thousands to millions of transistors are incorporated. It is essential to note that the electron movement is much faster & better as compared to the hole movement, so this is the reason to use an NPN transistor over a PNP transistor in many applications. These transistors are … [Read more...]

The BD140 PNP transistor was manufactured originally by Phillips and rated at 160MHz for use in particular audio applications. After that, these transistors were cloned simply by other electronic manufacturer companies like ON Semi, ST, Samsung, etc. Generally, there are well-known medium power PNP transistors available like BD136 & BD140 which are used in various electronic circuits. This article provides brief information on the BD140 Transistor, pinout, specifications, circuit, and its … [Read more...]

The BC548 is an NPN epitaxial silicon transistor that was created with the metal-cased BC108 family transistors. This transistor is a successor to the BC238 transistor & different from the BC108 transistor in the package shape. The specifications of the BC548 transistor are the same or exceed the BC148, BC238 & BC108. So this transistor is a suitable alternative within any circuit that is designed for the older BC148 or BC108. The BC548 transistor is generally used in American & … [Read more...]

The transistor is one of the significant semiconductor components used in almost every electronic device to regulate or control electronic signal flow. The transistor is a kind of semiconductor device, used for conducting & insulating electric current (or) voltage. Transistors are available in two types; PNP and NPN. Generally, a transistor includes three terminals or layers that are made with semiconductor material to carry a current. Transistors are utilized in a broad range of electronic … [Read more...]