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  • September 1, 2022

A diode is a type of electrical component that has two terminals and an asymmetric transfer characteristic. This means that the diode has a low resistance to the flow of current in one direction, but a high resistance in the other. They are used to rectify alternating current (AC) into direct current (DC). The most common type of diode is the P-N junction diode. A P-N junction diode is made of a piece of P-type semiconductor material connected to a piece of N-type semiconductor material. When a voltage is applied to the P-N junction diode, it allows current to flow through it in one direction only. The current-voltage characteristic of a P-N junction diode is nonlinear, meaning that the diode does not obey Ohm's law. 

Semiconductor diodes are used in electronic devices such as radios, televisions, and computers. Diodes are used in a variety of applications, including rectifiers, voltage regulators, signal detectors, and signal mixers. They are also used in light-emitting diodes (LEDs), which are used as indicator lights and in electronic displays.


What is a diode?

A diode is a type of electrical component that only permits the flow of current in one particular direction. A diode is depicted as a triangle in circuit diagrams, with a line going across one of the vertices of the triangle.

What are the main types of diodes?

Diodes are semiconductor devices that allow current to flow in one direction only. There are three main types of diodes: rectifier diodes, zener diodes, and LED diodes. Rectifier diodes are used to convert alternating current (AC) to direct current (DC). They are made of two semiconductor layers, one p-type and one n-type, that are connected together.

How does a PN Junction work?

A diode, also known as a PN junction, is a component in an electrical circuit that makes it possible for current to flow in one direction with greater ease than in the other. The term "forward biasing" refers to the process of applying a voltage across a diode in order to facilitate the flow of current, whereas the term "reverse biasing" refers to the process of applying a voltage across a diode in the opposite direction.

Why are diodes also called rectifiers?

As a result of their ability to convert alternating current (ac) into pulsing direct current, diodes are also referred to as rectifiers (dc). In the forward direction, the ideal p-n junction diode has a resistance of zero, while the resistance in the reverse direction is infinite. In an AC voltage waveform, this technique can be applied to remove the negative cycles and leave only the positive cycles in place.

Chip 1 Exchange is a franchised distributor specializing in the distribution of electronic components for medical, automotive, industrial, mobile computing, and aerospace applications. 
Chip 1 offers electronic and semiconductor needs such as diodes from our reliable partner brands such as America Semiconductor, Brightek, Comchip, and many others.




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