MXP4KE10A Circuit Protection

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TVS – Diodes

MXP4KE10A is an automotive-grade transient voltage suppressor (TVS) device specially designed for overvoltage protection. It not only has excellent circuit and overvoltage protection functions, but also can dissipate a large amount of power, and is characterized by a low clamping voltage.

Application Field

MXP4KE10A is a surface mount device featuring pulse power of 10kW (tp=8/20uS). This particular automotive-grade transient voltage suppressor (TVS) is particularly successful in protection of high-speed data lines from damage due to static discharge, lightning, inductive load switching, and other similar ESD events. MXP4KE10A series provides high-level ESD, lightning and power surge protection which makes it ideal for automotive applications, like power control, ABS modules, car access, body control, automotive entertainment systems, and automotive electronic systems. In addition, MXP4KE10A is also widely used in the field of Industrial Control.

Working Principle

MXP4KE10A devices use a Breakdown (Zener) diode characteristic to suppress transient overvoltage conditions. When the voltage across the chip exceeds the breakdown voltage, the device enters an avalanche breakdown region, entering into a low impedance mode. This allows the TVS to virtually short the voltage source and limit the voltage across itself. Conversely, during normal operating conditions, the Series Transient Voltage Suppressors (TVS) remain in a reverse bias state.

The actual working principle of the MXP4KE10A transient voltage suppressor is relatively simple. Its operating voltage range includes working peak reverse voltage -10V to 600V. In normal condition, it is reverse biased. Upon applying a voltage which exceeds the breakdown voltage, the diode quickly enters Zener breakdown region and conducts current in the opposite direction. This provides protection against over-voltage and over-current, allowing it to shunt the unwanted current surge away from the delicate components. In addition, the diode also helps reduce resonant ringing.

MXP4KE10A stands out due to its high power dissipation capability allowing 10 000 Watts of peak pulse power (8/20μs). It offers excellent clamping performance and low leakage current to protect sensitive components. The snap-off characteristics for multi-strike protection further enhances the protection and allows the device to maintain high reliability.

Conclusion

Overall, MXP4KE10A is a high quality automotive-grade transient voltage suppressor device that offers tremendous protection against over-voltage and over-current. It is a great choice for automotive applications due to its high power dissipation capability and low leakage current. This makes the device extremely reliable and provides excellent protection against ESD, lightning and power surge. In addition, its snap-off characteristics allows it to offer multi-strike protection which further enhances to its reliability.

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