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Diodes - Zener - Single

BZX79-B10,143 is the popular single zener diode that is mainly used for voltage regulation and can be found in numerous electrical circuits. It has a wide variety of uses across a variety of consumer electronics, as well as automotive and industrial applications. This zener diode has a maximum working voltage of 10V, a breakdown voltage of approximately 9.7V, a maximum of 4W power dissipation rating, and a maximum of 200mA current.

Appication Field

A single zener diode such as BZX79-B10,143 has the capability of regulating different voltages with its breakdown voltage. This makes it suitable for applications such as voltage regulation for logic circuits, peak current limitation for various switch mode power supplies, and for protection in over-voltage applications. In automotive applications, a single zener diode is used for voltage regulation in various electronic circuits as well as for surge protection.

In industrial applications, zener diodes are used for numerous applications in areas such as telecommunications, industrial control and automation, instrumentation and automation, power electronics, and power monitoring systems. For instance, they are used for over- voltage and over-current protection, noise reduction, peak current limitation, and reliable power regulation.

Working Principle

The working principle of BZX79-B10,143 involves a major physical property of materials called the reverse bias breakdown. This means that when the electric field intensity within a material is more than a certain level, the material can break down and let current pass from the anode to the cathode. When a voltage greater than its breakdown voltage, which is 9.7V in this case, is applied, the BZX79-B10,143 diode starts conducting current.

The diode then acts like an ohmic resistor and there is a controlled and fixed value of current flow. The stability of a zener diode is based on temperature. At different temperatures the zener voltage changes, so temperature compensation must be taken into consideration when setting up the the diode.

In summary, the BZX79-B10,143 single zener diode is a very useful electrical component and can be used in a wide variety of applications. Its unique properties of allowing current flow when a voltage greater than its breakdown voltage is applied make it suitable for voltage regulation and protection in over-voltage applications.

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