MLCE11AE3

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MLCE11AE3 TVS - Diodes Application Field and Working Principle

TVS (Transient Voltage Suppressors) are a form of semiconductor protectors specifically designed to protect sensitive electronic circuits from voltage and current surges (commonly known as transients). This article will discuss the application field and working principle of the MLCE11AE3, a type of TVS diode.

Application Field

The MLCE11AE3 is a bidirectional working, low-capacitance ESD protection device with an AC and DC working voltage of 11V. The MLCE11AE3 has a simplified SMB package, meaning it is small in size and can be used in a variety of applications where space and weight are factors. They are especially suitable for ESD protection of data lines in powered systems with active-matrix LCD displays. The MLCE11AE3 also offers:

• Low capacitance between channels of 0.25 pF (typical)
• High surge capability of Ipp=2.5A (8/20 µs)
• High-speed response to suppress high frequency transients
• Excellent clamping performance

Working Principle

The MLCE11AE3 TVS diode is designed to prevent damage to sensitive electronic circuits from electrostatic discharge (ESD). The diode is designed to be connected in parallel with the protected line. When an ESD event is detected, the TVS diode is triggered and quickly conducts current from the line to ground. This current then dissipates and the diode resets. This process is referred to as “clamping”, as it is similar to a voltage clamp that opens and closes at set voltage levels.

The MLCE11AE3 TVS diode can also protect against over-voltage transients. In the case of an over-voltage transient, the diode will quickly conduct an amount of current to ground that is proportional to the amount of voltage over the nominal working voltage. This prevent the voltage from exceeding the specified working voltage and damaging the protected circuit. The current then dissipates and the diode returns to its non-conductive state.

Conclusion

The MLCE11AE3 Bidirectional TVS diode is designed for small and light weight applications and offers excellent ESD and over-voltage protection in powered systems with active-matrix LCD displays. This diode is designed to quickly conduct current to ground in the case of an ESD or over-voltage event to prevent damage to the unprotected circuit.

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