MXLLCE36A Circuit Protection

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TVS Diodes – The MXLLCE36A Application Field and Working Principle Explained

Transient Voltage Suppressor (TVS) Diodes are a special type of diodes that are specifically designed to protect other components from electrical overstress (EOS) by diverting high voltage spikes away from the component. TVS Diodes are widely used in various industrial and consumer products, such as computers, phones, and cars, to protect against abrupt voltage changes in the system. One of the most popular TVS Diodes is the MXLLCE36A Diode, and in this article, we will explore its application field and working principle.

Application Field of the MXLLCE36A Diode

The MXLLCE36A Diode is a low capacitance diode designed to protect all-digital assets found on PCBs from electrical overstress due to lightning, electrostatic discharge (ESD), surge, and power-on/off transients. The main features of the MXLLCE36A include:

• Low capacitance – only 2.2pF at working voltage
• High surge capability
• Ultra low reverse current
• Low leakage current – only 10uA @ Vm

The low capacitance of this Diode makes it suitable for high frequency applications, and its fast response time helps reduce the total system stress. It is mainly used in digital logic and analog signal applications when the system needs protection from voltages above 40V. Additionally, the low reverse current of the MXLLCE36A makes it an ideal choice for high-speed switching and non-volatile memory (NVM) applications. The Diode is available in a variety of case styles, such as SOD-123, SOT-143, and TO-251, which makes it suitable for a wide range of PCB layouts.

Working Principle of the MXLLCE36A Diode

The MXLLCE36A is a Zener type Diode that works on the principle of Reverse Bias Avalanche Breakdown. When a reverse biasing voltage is applied to the Diode, the junction potential of the Diode increases and effectively acts as a Zener barrier. This barrier prevents the current from increasing further and helps the Diode to absorb the surge current and reduce the voltage across the system.

The Diode is designed such that it can absorb a certain amount of energy without damage. Once the energy exceeds the specified threshold, the Diode turns on and diverts the excess energy away from the system. This allows the Diode to protect the system from voltage spikes without causing any damage. Additionally, the Diode has an ultra low leakage current that helps maintain optimal system performance even during periods of inactivity.

Conclusion

The MXLLCE36A Diode is a low capacitance TVS Diode designed for applications requiring protection from voltage spikes above 40V. The Diode works on the principle of Reverse Bias Avalanche Breakdown and is designed to absorb and divert energy away from the system without causing any damage. The Diode is available in a variety of case styles and is suitable for a wide range of PCB layouts. The Diode is widely used in digital logic and analog signal applications to protect all-digital assets found on PCBs from EOS due to lightning, ESD, surge, and power-on/off transients.

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