Junction Field Effect Transistor

A Junction Field Effect Transistor (JFET) serves as a distinct transistor type, mainly employed for amplifying low-power signals. The operation of JFETs involves regulating the current between the source and drain terminals through the influence of an electric field. The voltage applied to the gate terminal regulates the conducting channel width, controlling the current flow. Commonly used in audio preamplifiers and oscillators, JFETs offer high input impedance and its various applications are in signal amplification scenarios.

There are two types of JFET namely N-channel JFET and P-Channel JFET. The symbol for these two types are shown below:

Types of Transistors

Transistor is similar to a semiconductor device which when used either conducts or insulates electric current or voltage. Prepared by three American physicists, John Bardeen, Walter Brattain, and William Shockley in the year 1947. There are different types of transistors based on their working principle.

This article deals with various types of transistor in detail along with introduction of transistor, its working and applications

Table of Content

  • What is a Transistor?
  • Types of Transistors
  • Bipolar Junction Transistor (BJT)
  • Types of Bipolar Transistor
  • Difference between NPN and PNP Transistor
  • Configuration of BJT
  • Unipolar Junction Transistor
  • Field Effect Transistor
  • Junction Field Effect Transistor
  • MOSFET
  • Insulated Gate Bipolar Transistors
  • Avalanche Transistor
  • Schottky Transistor
  • Diffusion Transistor
  • How Do Transistors Work?
  • Transistors Operation
  • Transistor Application

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What is a Transistor?

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Types of Transistors

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Bipolar Junction Transistor (BJT)

Bipolar Junction Transistors (BJT) is a common type of transistor comprising of three parts: emitter, base, and collector. Which acts as a regulator for both electrons and holes in a circuit....

Types of Bipolar Transistor

There are two types of Bipolar Transistor which are mentioned below:...

Difference between NPN and PNP Transistor

The difference between NPN and PNP Transistor is tabulated below:...

Configuration of BJT

Bipolar Junction Transistor works in three configurations which are mentioned below:...

Unipolar Junction Transistor

Unipolar Junction Transistors, commonly referred to as field-effect transistors (FETs), work by managing the movement of either electrons or holes. This category comprises Metal-Oxide-Semiconductor FETs (MOSFETs) and Junction Field Effect Transistors (JFETs)....

Field Effect Transistor

Field-Effect Transistor (FET) is a type of transistor that utilizes an electric field to control the conductivity of a semiconductor channel. FETs are widely used in electronics for various applications including amplification and switching....

Junction Field Effect Transistor

A Junction Field Effect Transistor (JFET) serves as a distinct transistor type, mainly employed for amplifying low-power signals. The operation of JFETs involves regulating the current between the source and drain terminals through the influence of an electric field. The voltage applied to the gate terminal regulates the conducting channel width, controlling the current flow. Commonly used in audio preamplifiers and oscillators, JFETs offer high input impedance and its various applications are in signal amplification scenarios....

MOSFET

Metal-Oxide-Semiconductor Field-Effect Transistor commonly called MOSFETs are the most widely used type of FETs in modern electronics. They have a metal gate insulated from the semiconductor channel by a thin layer of oxide (usually silicon dioxide). The conductivity of the channel is controlled by the voltage applied to the gate terminal. MOSFETs are also available in two main types: N-channel MOSFETs and P-channel MOSFETs....

Insulated Gate Bipolar Transistors

Insulated Gate Bipolar Transistor (IGBT) is a specific kind of transistor. Notably, it has traits from two different types of transistors, namely the MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) and bipolar transistors....

Avalanche Transistor

Avalanche Transistor is a specialized type of bipolar junction transistor (BJT) that operates in the avalanche breakdown region. In a standard BJT, the transistor operates primarily in the active region, where the collector-base junction is reverse-biased and the collector current is controlled by the base current....

Schottky Transistor

Schottky Transistor combines the principles of a Schottky diode and a bipolar transistor into a single device. Like a Schottky diode, it has a metal-semiconductor junction instead of a traditional semiconductor-semiconductor junction. This metal-semiconductor junction forms a Schottky barrier, which has lower forward voltage drop and faster switching characteristics compared to a traditional P-N junction....

Diffusion Transistor

Diffusion Transistor is one of the early types of bipolar junction transistors (BJTs). In a diffusion transistor, the semiconductor material is doped to create regions of different conductivity types. These doped regions are known as the emitter, base, and collector. The emitter is heavily doped with either donor or acceptor impurities to create an excess of either electrons (N-type) or holes (P-type)....

How Do Transistors Work?

In a PNP transistor, ‘holes’ act as the primary charge carriers instead of electrons in an NPN transistor. This absence of electrons acts as positive charge carriers....

Transistors Operation

Transistors are controllers for electricity. They’re like a sandwiches with layers that either have extra electrons (the n-type) or missing some electrons (the p-type). These layers decide how easily electricity can move through the transistor....

Transistor Application

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Transistor Types – FAQs

What is a Transistor and its type?...