MXLCE120AE3 Circuit Protection

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TVS-Diodes have many unique features and applications, among which the MXLCE120AE3 stands out as a versatile and dependable component for various applications. It is a uni-directional, capacitive charge-dissipating TVS-Diode, which helps in protecting against electrostatic discharge (ESD) and other electrical transients. MXLCE120AE3 is mainly designed for use in the computer, consumer, and communications industries for ESD protection.

The MXLCE120AE3 device is based on a PN junction diode. It is constructed with a highly reliable PN junction that is designed to dissipate energy when subjected to voltages above a certain threshold. When subjected to transient voltage pulse, the PN junction compresses the waveforms and conducts a current. This current is then dissipated as heat in the device, making it an ideal protector against ESD.

In practical applications, the MXLCE120AE3 can be used as an ESD protection circuit for microcontrollers, which are generally susceptible to ESD damage. The device detects transient pulses and quickly redirects the charges away from the circuit, thus preventing the current from damaging the circuit. Apart from this, the device can also be used to protect electrical components from undesired voltages and currents.

The working principle of the MXLCE120AE3 is actually quite simple. When subjected to overvoltage, the PN junction quickly obtains a new stable state due to the capacitance of the PN Junction. This new and stable state functions as a short circuit and dissipates the energy until the voltage reaches its permissible value. The PN junction acts as a high speed switch and ensures that a maximum of 90-110 volts is transmitted per pulse without harming the nearby electronic components.

MXLCE120AE3 is suitable not only for ESD protection circuits, but also can be used in a wide range of applications including power supply protection, li polymer battery protection, ACline/DC line protection, and reverse polarity protection. The device offers excellent noise immunity and surge-handling capabilities, making it an ideal choice for bi-directional ESD protection. In particular, its IEC61000-4-2 (+8kV Contact/Air) is compliant, which means it is air and contact safe for use in consumer applications.

Apart from these features, the MXLCE120AE3 also includes several other features and specifications. It offers excellent clamping levels of below (-)60V for 1.2kV, with an operating temperature range of -65 to +150°C, making it suitable for different environmental conditions. The PN junction also offers impressive ESD robustness, withstanding up to 15kV of contact discharge. Ultimately, the MXLCE120AE3 device provides reliable and durable ESD protection for various applications.

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