AZ23B3V3-G3-18

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The AZ23B3V3-G3-18 Zener Array is an integrated circuit designed to provide a specific voltage level of protection to electronic circuits. The device is a combination of 3 independent Zener diodes that provide a solution that is more robust and efficient than using individual discrete diodes. AZ23B3V3-G3-18 provides the same basic functionality as three discrete diode devices but with the enhanced features of being smaller in size, lower cost, and eliminate up to 90% of the solder joints.

The AZ23B3V3-G3-18 is often used in LED applications as well as in aircraft, automotive, and other robotic applications. It is available in a range of breakover voltages from 2.7V to 18V and can be used in combination with transistors, MOSFETs, and other voltage regulation devices to provide system level protection.

The AZ23B3V3-G3-18 application field and working principle are best understood by an analogy using a "chain of dominoes"; if the first domino is toppled, all the other dominoes will fall as a result. In the case of the AZ23B3V3-G3-18, instead of toppling dominoes we have electrical current flow through a series of Zener diodes. The Zener diodes are silicon-based p-n junction devices and behave like a regular diode but with the additional feature of providing a constant voltage when an electric current passes through them. In the case of the AZ23B3V3-G3-18, when the voltage reaches the "breakover" voltage, which is determined by the value of the diode, the diode begins to conduct current. This current then cascades through the second and third diodes, which all act in the same manner and maintain the same voltage.

In operation, the AZ23B3V3-G3-18 works as an omni-directional, self-powered protective device that is capable of providing system-level protection against power supply over-voltage, electrostatic discharge (ESD) and other transient events that can cause device latch-up. The protection works in both the forward and reverse directions and is very effective at clamping down on the excessive voltage.

At voltage levels exceeding the "breakover" voltage, the AZ23B3V3-G3-18 will become more conductive, allowing the current to pass through on its way to ground, thus providing an effective short circuit to the excess voltage. As a result, the device acts as an effective protector against excessive voltage levels. The device can be used either in parallel with the circuit or in series, depending on the voltage level needs.

In addition to providing protection against over-voltage, the AZ23B3V3-G3-18 is also capable of providing system level protection against electrostatic discharge (ESD). ESD protection is important in a today\'s high-tech devices and circuits, as they are particularly vulnerable to static electricity build up. By using the AZ23B3V3-G3-18 device, the static electricity is dissipated away from the circuitry and the device, thus providing a safer operating environment for the device.

One important factor when considering the use of the AZ23B3V3-G3-18 is understanding the power dissipation requirements. The device must be capable of dissipating the heat generated by the current that passes through the device. The device is often specified to operate in conjunction with heat sinks and thermal compounds to ensure proper cooling and operation. The thermal resistance of the device is specified on the side of the package.

The AZ23B3V3-G3-18 is an extremely effective device that can provide superior system-level protection against power supply over-voltage, transistor latch-up, electrostatic discharge events and other transient events. Understanding the application field and working principles of the device is a key factor in selecting the right Zener array for the application.

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