MAPLAD18KP10CAE3

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TVS (Transient Voltage Suppressor) diodes are widely utilized in modern electronic equipment. The MAPLAD18KP10CAE3 is a typical TVS diode from MPS with advanced technology. It is a multi-function device with high voltage and high power capability, and is capable of clamping surges up to 18kV peak at 10A peak. Understanding this device\'s application field and working principle is important for engineers to determine how to best utilize it in their projects.

Application Field of MAPLAD18KP10CAE3

The MAPLAD18KP10CAE3 TVS diode is designed for protection from over-voltage. It provides protection against low energy transients (including EFT, lightening and inductive load switching) for high-end industrial and consumer applications, including medical systems, data processing systems, consumer electronics, communication systems, and many others. This TVS diode is an ideal protection solution for the most demanding commercial and industrial applications.

The device is suitable for bus systems, DC-DC converters, AC mains, battery charging systems, transformerless power supplies, wireless systems, and more. The MAPLAD18KP10CAE3 also features a reverse surge capability up to 1A, and an electrostatic discharge protection up to 15kV air discharge, 8kV contact discharge, making it a great choice for applications with high-powered circuits.

Working Principle of MAPLAD18KP10CAE3

The MAPLAD18KP10CAE3 is a voltage controlled zener diode, meaning that it operates by turning on when its reverse voltage reaches a particular voltage. When in operation, the device effectively diverts the voltage away from the load and dissipates the energy into a low-impedance path.

When reverse voltage is below the turn-on threshold, the diode remains off and allows normal flow of current in the circuit without any voltage drop. When the reverse voltage rises above the threshold and the device turns on, it clamps the excess voltage and shunts the current away from the load, protecting the component from damage.

In addition to the above-mentioned protection, the MAPLAD18KP10CAE3 features a reverse surge capability, allowing the device to conduct up to 1A of reverse current when needed. When voltage is within the normal range, the device is designed to not conduct, allowing normal circuit operation.

The MAPLAD18KP10CAE3 is also equipped with an electrostatic discharge (ESD) protection, which limits the voltage at the pins to minimize damages to sensitive components. In addition, the device is tested and certified to withstand up to 15kV air discharge, 8kV contact discharge, and 5kV human body model.

Conclusion

The MAPLAD18KP10CAE3 is a multi-function TVS diode designed to provide high voltage and high power protection against low energy transients. It is suitable for various applications, including bus systems, DC-DC converters, AC mains, transformerless power supplies, and more. The device also has a reverse surge capability and an ESD protection. Understanding both its application field and working principle is critical for engineers to select the right device for their applications.

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