MAPLAD18KP43CAE3

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TVS - Diodes

The MAPLAD18KP43CAE3 is a device in the family of transient voltage suppressors (TVS) diodes. It is designed to provide both protection and ESD mitigation for a wide variety of electrical components. Its application field ranges from automotive and industrial electronics to consumer electronics. In addition, when used secondary to other clamps, such as MOSFETs, it can provide advanced overvoltage protection while ensuring a low clamping voltage.

Applications of MAPLAD18KP43CAE3

The MAPLAD18KP43CAE3 can provide advanced protection for a multitude of electrical components, from microcontrollers to circuits. It is designed for both automotive and industrial electronics, such as engine control modules, adapters, cellphones, laptops, and home appliances. It is also designed to provide protection for low-voltage secondary circuits, such as power supplies, UPS, and flash units. Additionally, it can be used to protect against high-energy transient events such as secondary lightning and high-energy overvoltage conditions.

Working Principle of MAPLAD18KP43CAE3

The MAPLAD18KP43CAE3 is designed to provide protection against transient voltage by using a zener diode as its core element. It has a breakdown voltage of 18kV and a capacitance of 43pF. This protection works in two stages: primary and secondary. During the primary stage, the zener diode starts to conduct when the voltage exceeds the breakdown voltage. This allows current to flow, which decreases the voltage to a non-damaging level. In the secondary stage, the TVS diode begins to dissipate the energy due to the presence of its capacitance. This capacitance acts as a short circuit, allowing the energy to be discharged quickly. This in turn protects the connected components from damage.

Conclusion

The MAPLAD18KP43CAE3 is a transient voltage suppressor (TVS) diode, designed to provide advanced protection for a variety of electronic components. It is designed for a wide range of applications, from automotive and industrial electronics to consumer electronics. It works by using a zener diode as its core element. When the voltage exceeds the breakdown voltage, the zener diode starts to conduct and reduces the voltage to a safe level. This is followed by the secondary stage, where the TVS diode dissipates the energy due to the presence of its capacitance. This capacitance acts as a short circuit, allowing the energy to be discharged quickly and protecting the components from damage.

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