MP4KE200AE3

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TVS-Diodes, also known as transient voltage protection diodes, are specialized two-terminal components designed to provide electrical overvoltage and overcurrent protection. They are often used for surge protection in power supplies, computers, data networks, and control circuits. The MP4KE200AE3 is a uni-directional silicon transient voltage suppressor diode specifically designed for quickly clamping the voltage of any sensitive devices during an over-voltage surge.

Application Field

The MP4KE200AE3 is primarily used in power supplies and voltage sensitive applications. It can provide with reliable protection against over-voltage transients in power mains and protection of internal components against load damping transients. This diode is most commonly used in power supplies, which increase the peak and impulse capability, allowing them to reliably absorb any energy pulses.

It is also widely used on circuits where input transients, such as turn-on and turn-off transients, need to be clamped. These circuits require a low capacitance, low-resistance, and low-inductive clamping characteristic which the MP4KE200AE3 can provide.

Working Principle

The MP4KE200AE3 operates on a reverse bias principle, meaning that they will allow current to flow from the anode to the cathode side when the current is higher than the forward current rating. This current flowing through the diode is then diverted to the load instead of the device under protection, resulting in a decrease in peak voltage.

The diode also has a high power dissipation requirement, which allows it to absorb and dissipate large amounts of energy when subjected to high voltage transients. Its proprietary structures significantly reduce the PN junction capacitance, resulting in a dramatic improvement of the transient suppressing performance. The low forward voltage drop characteristic maximizes the power dissipation.

The MP4KE200AE3 is designed to have low leakage current, making it suitable for sensitive applications where leakage current need to be kept at a minimum. It can also handle up to 5A current, making it capable of handling a wide range of transients.

The device is designed to remain in a capacitive state during surge events, which ensures that the maximum transient energy is intercepted by the device and diverted from the device under protection, thus providing maximum protection.

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