MPLAD15KP70A Circuit Protection

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TVS-Diodes also called Transient Voltage Suppressors (TVS) is a class of semi-conductor devices that protect sensitive electronic components from over-voltage transients as short-term current spikes or spark over-voltages in both AC and DC circuits. The MPLAD15KP70A device is one TVS-Diode available in an ultra-miniature ESD(Electrostatic Discharge)-Protection solution, suited for the current highly miniaturized electronics equipment & systems.

MPLAD15KP70A Device Overview

The MPLAD15KP70A is a single line Transient Voltage Suppressor (TVS) diode that limits the instantaneous voltage or ensures ESD-Protection of circuit components. The device also allows efficient protection against destructive electrostatic discharge for AC and DC mains protection. Its small 4-pin low profile design and low forward voltage drop provides an incredibly versatile ultra-miniature solution for ESD-Protection. This device is available in EMI/RFI protection, dual-channel ESD-protection, with a wide range of operating temperatures, making it suitable for any environmental conditions.

Features and Applications

The MPLAD15KP70A device provides an extensive feature-set that is tailored for a large number of application ranging from both protective as well as EMI/RFI filtering. Its special features include low leakage current, low capacitance, high-dissipation capability, and excellent surge handling capability. This device is particularly suitable for applications which require ESD-Protection, EMI/RFI and short-circuit protection for sensitive electronics. Its applications include mobile phones, data communication, automotive electronics, consumer electronics, computers, and medical devices to name a few.

Working Principle and Limitations

The operation of the MPLAD15KP70A device is based on a simple principle of diode operation. The operation of the diode is based on a PN-junction structure. When the device is subjected to a reverse applied voltage, the junction is reversed biased and current does not flow through the diode. In the forward direction, the junction is forward biased and current flows through the diode. When the device is exposed to an overvoltage, the diode conducts which provides the necessary clamping action to limit the voltage. In the case of over-current or short circuit faults, the diode provides current limiting by which it increases its withstand voltage to prevent further damage.

The MPLAD15KP70A device has some drawbacks and limitations. The main limitation is its limited clamping action, which means that it may fail to protect against high levels of overvoltage. Additionally, the device has a relatively narrow operating window and may not be able to be used outside of this window. Finally, the device may have a tendency to produce excess heat under certain conditions, which can reduce the life of the device or cause thermal damage.

Conclusion

The MPLAD15KP70A device is a great example of a Transient Voltage Suppressor (TVS) diode in an ultra-miniature solution. This device provides a wide range of features such as EMI/RFI protection, dual-channel ESD-protection, with a wide range of operating temperatures, making it suitable for any environmental conditions. It is suitable for applications such as mobile phones, data communication, automotive electronics, consumer electronics, computers, and medical devices to name a few. The device operates on the simple principle of diode operation but has some limitations such as its limited clamping action, relatively narrow operating window, and tendency to produce excess heat.

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