MXSMBG45CAE3 Circuit Protection

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TVS (Transient Voltage Suppressor) are designed to protect electronic components and equipment from ESD (electrostatic discharge) or from other transient overvoltage conditions, such as an internal transient from inductive switching. The MXSMBG45CAE3 is a TVS Diode designed to protect against voltage breakdown caused by surge or ESD. It is available in various packages, such as SOD-123, SOD-923 and SOD-523. It provides excellent protection to the components by clamping fast transients and offering low clamping voltage required to conserve power.

Application Field

The MXSMBG45CAE3 is mainly used for ESD (electrostatic discharge) protection for automotive applications, including dashboards and airbags. It is also widely used in other electronic equipment, such as printers and LCD TVs. Furthermore, it can also be used in high-speed broadband equipment, computer networks, and communication circuits.

Working Principle

The MXSMBG45CAE3 TVS Diode is a two-terminal device that clamps fast transient voltages to a specific voltage level. It consists of semiconductor junctions that are connected parallel to the voltage source. When an electrostatic discharge occurs, the device acts as a crowbar, which shorts the protection circuit of the device and provides a low impedance path for the overvoltage to pass through.

When the overvoltage exceeds the voltage breakdown of the device, the clamping voltage is always lower than the maximum voltage allowed by the circuit. This helps prevent the damage of any components or circuits. The low clamping voltage also conserves power, as it reduces the current consumed

Advantages

The MXSMBG45CAE3 provides a range of advantages for applications. Firstly, it has a fast response time, which helps to protect against transient voltage events. Secondly, it has an average clamping voltage of around 17V, which helps to conserve power. Thirdly, it has a low leakage current, which helps to further reduce power consumption. Finally, it operates over a wide temperature range, from -40°C to +150°C.

Conclusion

The MXSMBG45CAE3 is a two-terminal device that provides protection from transient overvoltage conditions, such as ESD. It operates by clamping fast transients to a specific voltage level, and its low clamping voltage helps conserve power. It is suitable for a variety of applications in both automotive and consumer electronics applications, due to its fast response time, low leakage current, and wide temperature range.

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