MXP4KE150CAE3 Circuit Protection

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MXP4KE150CAE3 is a type of TVS - Diodes (Transient Voltage Suppressors). It enables the protection of various electronic devices in different application fields from high voltage surges. This article explains the application field, working principle and construction of these devices.

Application Field
MXP4KE150CAE3 devices are commonly used for protecting consumer electronics, industrial equipment, telecommunication equipments, computer equipments, and automotive electronics. In consumer electronics, they are mainly used to protect components from temporary over-voltage and transient surges, such as lightening strikes. In industrial equipment, these devices are used to protect components from spikes, surges and transients in power systems, such as motor starters and power supply systems. In telecommunication equipments, these devices are used for protecting components in switches, routers, and hubs from electrostatic discharge (ESD). In automotive electronics, they are used for protection against adverse vehicle conditions and transient voltage and current events, such as voltage fluctuations due to inductive loads.

Working Principle
The main working principle of MXP4KE150CAE3 is its ability to absorb energy from spikes and surges in the power system. When the energy spike/surge exceeds the breakdown voltage of the device, it conducts the voltage and limits the amount of energy that could damage the underlying device or component. The device is constructed using a zinc oxide material, which is capable of absorbing very high levels of surge energy, typically up to 1500W of peak pulse power.

Construction
MXP4KE150CAE3 devices are constructed using a metal-oxide semiconductor (MOS) structure. The MOS structure consists of two layers of metal-oxide material, a lower-voltage barrier and an upper-voltage barrier. The voltage barriers limit the voltage which will cause a breakdown, allowing the device to operate up to its rated voltage. The device also has a transparent conductive zinc oxide (TCZO) coating, which helps in absorbing transient surges and ESD events. The device is then encapsulated in a non-conductive resin to prevent moisture and dust from entering the package.

MXP4KE150CAE3 devices are widely used in different application fields due to their ability to absorb extremely high peak pulse power. They are also suitable for protecting components from ESD events and transient voltage and current events. Furthermore, the devices are encapsulated in a non-conductive resin which helps in protecting it from moisture and dust.

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