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Diodes - Definition, Function, Types, and Uses.pdf
1. Diodes - Definition, Function, Types,
and Uses
Rapidly occurring technological advancements have made our lives more convenient. The
development of electronic components plays a vital role in the development of complex types
of machinery. Small or big, every component has its own importance in the field of technology.
Diodes are among such electronic components. Diodes are used in electronic items including
signal limiters, modulators, switches, voltage regulators, and oscillators. Diodes wholesale
distributors and suppliers provide different types of diodes for use in various electronic items
at a low price.
What is a Diode?
A diode is an electronic component with two terminals and it conducts the flow of electric
current in a single direction. One end of the component has a high resistance and the other one
has a low resistance. A diode is mostly made by using semiconductors and converts altering
current (AC) into direct current (DC). It can be made from silicon, selenium, and germanium.
They also secure the circuits by limiting the voltage. There are two terminals of a diode - Anode
and Cathode. The anode shows the direction of the flow of conventional current. On the other
hand, Cathode marks the direction of the flow of non-conventional current.
How is a diode made?
The diode is made up of semiconductors, mainly silicon and germanium. The diodes can be
forward-biased and reversed-biased. Littelfuse Wholesale Diode Distributor like Express
Technology Group offers the best quality diodes for use by businesses, industries and
households to the retailers at the most competitive price.
Based on characteristics, diodes are mainly of three types.
ď‚· Forward-biased
ď‚· Reverse-biased
ď‚· Zero biased
• Forward-biased Diode – In this, the anode voltage is more positive in comparison to the
cathode voltage. It is used in the case of a low-voltage drop.
2. • Reverse-biased Diode – In the case of a reverse-biased diode, the cathode voltage is more
positive if compared to the anode voltage.
What are the different types of diodes?
There are different types of diodes available for pre-defined purposes. They are available with
Diodes Wholesale Distributors & Suppliers that retailers can get at the best price.
Let us have a look at the different types of diodes.
• Light Emitting Diode – Commonly abbreviated as LED, this emits light when electric current
flows through it. The lights of numerous colors are produced by these diodes. It is worth noting
that the light produced in the case of some diodes is not visible due to varying frequency levels.
Some diodes can produce three colors at a time.
• Laser Diode – These diodes emit coherent light beams as the phase difference between those
beams is constant. Laser diodes are used in CDs, DVDs, and other laser products. They are
expensive in comparison to light-emitting diodes.
• Avalanche Diode – It is constructed to operate in the reverse breakdown region. It works by
considering the avalanche effect. Avalanche diode is used in radio gears and photo detection.
• Zener Diode – One of the frequently used diodes, these provide stable voltage and operate in
reverse bias to stop the flow of a point of voltage. These diodes are mostly used in the case of
power supplies.
• Photo Diode – Photo diodes are specially used to detect light and use reverse bias. These are
primarily used in solar cells and photometers.
• Rectifier Diodes – Also called the P-N junction diodes, these are used for the rectification
process and have a double layer of semiconductors in them. The first layer of the
semiconductor material is called P-type material and the latter one is called N-type material.
Where are diodes used?
Once you get familiar with the definition, types, and basic structure of diodes, let us know
about their applications.
• The most basic application of a diode is the conversion of an AC into DC. This feature is used
in electric switches to prevent spike and electronic hazards.
• Diodes are frequently used in modern processors.
• The ones which emit light are used in laser devices.
• They mainly prevent signals within a supply and in transistors.
• Diodes are also used in clamping circuits, logical gates, and clipping circuits.
3. Diodes are used for multiple purposes and each type of diode has a pre-defined purpose.
Littelfuse Wholesale Diode Distributor deal with different types of diodes and similar
electronic components. Their best quality products are available on the online store of Express
Technology Group.
Visit: https://www.express-technology.com/