MAP4KE200A

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TVS - Diodes are an important component for over-voltage protection, whose purpose is to temporarily short the current path by absorbing transient energy in its junction. MAP4KE200A is a commonly used bidirectional TVS diode which is optimized for ESD protection in ultra-portable applications. Additionally, its low dynamic resistance and capacitance also make it suitable for signal line hardening. Here’s a look at the application field and working principle of MAP4KE200A.

Application of MAP4KE200A

MAP4KE200A is mainly used in a variety of electronics scales and consumer devices, including computers, digital cameras, USB devices, and other devices that require surge current protection. In the automotive industry, it is often used to protect against ESD in automotive ECUs and other other components.

MAP4KE200A is also suitable for use in domestic electrical appliance parts such as washing machines and refrigerators, which need to protect high voltages and currents. In the military and aerospace industries, it is used for anti-ESD protection in military devices to ensure the performance and reliability of equipment.

Working Principle of MAP4KE200A

MAP4KE200A uses the avalanche breakdown principle to achieve over-voltage protection. Its junction is designed to operate at a reverse breakdown voltage of 12 V, which provides a low on-state resistance. When the voltage on the protected side of the diode exceeds 12 V, avalanche current will be generated in the junction of the diode. This current provides a low-impedance short circuit for the over-voltage current, thus preventing the over-voltage from passing through the protected device.

MAP4KE200A also has a low capacitance, which helps to protect the signal integrity of the line. When the line is under attack, the diode will absorb the surge energy and protect the signal line from damage. This makes it suitable for signal line hardening and over-voltage protection.

Conclusion

MAP4KE200A is a bidirectional TVS diode optimized for ESD protection in ultra-portable applications. Its low resistance allows it to provide surge current protection while its low capacitance ensures that signal integrity is maintained. It has a wide range of applications, from consumer electronics to military and aerospace systems. Its avalanche breakdown principle and low on-state resistance allow it to provide quick and reliable protection against over-voltages.

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