AZ23B4V3-E3-18

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AZ23B4V3-E3-18 Diodes - Zener - Arrays

AZ23B4V3-E3-18 diodes are used in diode array configurations that are found in a variety of electronic applications, from power regulation and voltage switching, to protection from short circuit and reversals of polarity. The AZ23B4V3-E3-18 is a four diode array equipped with Zener diodes for voltage regulation and avalanche diodes for over or under voltage protection.

Applications

The AZ23B4V3-E3-18 is a versatile multi-diode array that has uses throughout the industry. It can be used in DC-DC power conversion, voltage down converting, transient voltage suppression, solid state switching, and other oscillating, frequency regulating, and surge protection tasks. It is designed to meet tough environmental conditions and also provide isolation, drive current and circuit protection. It is useful in low-power, high-speed applications, including on-board logic controllers, computers, and other digital systems.

The AZ23B4V3-E3-18 is also used in AC-DC converters, inverters, inverter-rectifiers, LED power supplies, and appliances. It is ideal for use in applications where fast switching is required, or where transient protection or high temperature operating conditions are encountered. In motor control, it helps to protect equipment from spikes due to brush arcing and noise magnetic fields.

Working Principle

The AZ23B4V3-E3-18 diode array consists of four Zener and avalanche diodes, connected in series and in parallel configurations. The Zener diodes provide voltage regulation, while the avalanche diodes provide protection against over-volting and reverse polarity. Together, they provide protection against accidental shorts and over temperature conditions.

To understand how these two types of diodes work, consider their different characteristics. Zener diodes have a fixed breakdown voltage, which is the voltage at which the diode allows a certain amount of current to flow. This current is referred to as the "cut-off" voltage. Above this voltage, the diode is in a high resistance state.

Avalanche diodes conversely, have a variable breakdown voltage. This voltage is dependant on the amount of current that is passed through it. As with the Zener diode, current flow is restricted, however, it takes more current and a higher voltage to achieve the breakdown. This makes the avalanche diode an excellent choice for protection against over-voltage and reverse polarity.

Combining these two types of diodes in a diode array increases the range of function, protection, and reliability of the circuit. For example, if an application requires robust Voltage Regulation, then the Zener diode within the array can take care of this task. The avalanche diode can then provide protection from over-voltage, short circuits, and reverse polarity.

Conclusion

The AZ23B4V3-E3-18 diode array is an efficient and cost effective solution for many of today\'s electronic applications. It combines Zener and Avalanche diodes within an array configuration, providing the user with reliable voltage regulation, surge protection, and reverse polarity protection. It is suitable for use in a broad range of applications, including automotive electronics, industrial controls, solid-state switching, and many more.

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