MXLSMLG10AE3 Circuit Protection

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The MXLSMLG10AE3 belongs to Transient Voltage Suppressor (TVS) - Diodes type of electronic component. It is a small, low capacitance, unidirectional, ultra low capacitance double ESD diode. This application specific diode employs two cascaded back-to-back Zener diodes for protection against external electrostatic discharges (ESDs). This diode consists of two chips that are connected by a common anode.

The MXLSMLG10AE3 is ideal for providing a low capacitance, high reliability, and cost effective ESD protection solution for data and signal lines, particularly in personal computers, notebooks, computer peripherals, wireless systems, handed-held appliances, and other embedded systems. This component is also quite popular in the telecom/datacoms infrastructure space and is widely used for protection of smart phones, PDAs, and tablets.

Mechanical specs

• Package: SOT-28
• Operating temperature range: -40℃ to +125℃
• Storage temperature range: -40℃ to +125℃
• Lead-free and RoHS compliant

Electrical specs

• Fast response time
• Supply voltage: -0.3V to +36V
• Clamping voltage: 29V
• Reverse leakage: 2uA.
• No.of channels: 1
• ESD protection: 20KV

Application Field of MXLSMLG10AE3

The wide supply voltage range of MXLSMLG10AE3 makes this component ideal for new data, signal communication systems, and other embedded systems with up to 36V power supply. It is often used for applications such as USB data ports protection, RS232 and RS485 port protection, high speed cellphone protection, ESD protection for digital cameras and video cameras, and many more. Due to its low capacitance, it can be used to protect different communication cables such as USB, HDMI, and Ethernet cables.

Working Principle of MXLSMLG10AE3

The basic principle of operation of this TVS-diode is based on Avalanche breakdown mechanism. When the external electrostatic discharges approach the TVS diode, the voltage gradient across the Zener region increases. This results in an avalanche breakdown of the junction, leading to a current flow through the Zener diode. The current through this diode is limited by an internal resistor, which keeps the current at a safe level.

In this way, any voltage exceeding the Zener voltage gets clamped to ground or the supply. This phenomenon not only protects the device, but also the supply voltage from high potential discharges. This is why the MXLSMLG10AE3 is so suitable for highspeed, high frequency, and low voltage systems. It is also very useful in protecting against electrostatic discharge (ESD) and other transient voltage events.

Conclusion

The MXLSMLG10AE3 is an excellent choice of component when reliability and cost efficiency are the required parameters. These components have been used in many reliable data communication and wireless systems for years. With their low capacitance and flexibility, they are especially suitable for protecting sensitive systems from the dangers posed by electrostatic discharges, and thus greatly reduce the risk of component damage.

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