MXLSMBG85AE3 Circuit Protection

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TVS-Diodes are an important class of protection devices. They are designed to absorb the energy of transient, high-voltage electrical discharges, such as those caused by lightning or electrostatic discharges (ESD). The MXLSMBG85AE3 is one such TVS-Diode, and it is designed for low-capacitance applications. This article will explore the MXLSMBG85AE3\'s application field and working principle.

Application Field

The MXLSMBG85AE3 TVS-Diode is an ideal choice for use in communication lines where there is a risk of ESD and electrical surge interference. These devices are offered in two package styles including the DFN-4 chip form and the SOT-363 chip form, these compact packages make them suitable for use in portable electronic devices. Moreover, they have a low clamping voltage of 5.5V, meaning they are ideal for protecting sensitive components in such systems. The MXLSMBG85AE3 is also available in both unidirectional and bidirectional configurations, giving the user greater flexibility when selecting this device for their application.

The MXLSMBG85AE3\'s reliability and performance have been tested, making them suitable for a range of different application settings. They can be used in switch-mode power supplies, solar and wind energy systems, automotive electronics, and industrial control systems. The MXLSMBG85AE3 has an ESD protection rating of IEC 61000-4-2 Level 4, and a surge follow current rating of 8A in unidirectional mode and 16A in bidirectional mode, making them suitable for protecting sensitive circuits from high-energy electrical discharges.

Working Principle

The MXLSMBG85AE3 TVS-Diode works by clamping the voltage of any high-energy transient to the breakdown voltage of the device. This is achieved using an avalanche breakdown mechanism, which relies on the flow of electrons to provide voltage protection. The breakdown voltage of the MXLSMBG85AE3 is 5.5V, which means that it will protect sensitive components from overvoltages up to this value. This will result in a lower rate of component failure and improved system reliability.

The protective action of the MXLSMBG85AE3 is also supplemented by a short-circuit protection mechanism, which is based on the device construction. The construction of the device consists of a pair of electrodes separated by a small gap. This gap is filled with a conducting material, which will become conductive when the voltage reaches the breakdown voltage of 5.5V. This will cause the electrodes to become bridged, and the electrical current passing through will be diverted by the device. This helps to reduce the amount of power dissipated by the device, and thus reduce the risk of damage to the connected components.

In summary, the MXLSMBG85AE3 TVS-Diode is an ideal choice for providing protection against overvoltage transients in low-capacitance applications. It has a low clamping voltage of 5.5V, which makes it ideal for protecting sensitive components, and it is available in both unidirectional and bidirectional configurations. Moreover, it has an ESD protection rating of IEC 61000-4-2 Level 4, and a surge follow current rating of 8A in unidirectional mode and 16A in bidirectional mode, making it suitable for protecting electronic circuits in a wide range of application settings. The device also uses an avalanche breakdown mechanism and a short-circuit protection mechanism to provide reliable protection against high-energy electrical discharges.

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