SZ1SMB28AT3G Circuit Protection

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TVS - Diodes are an important part of device protection and safety. They come in various forms and serve different purposes depending on the application. The SZ1SMB28AT3G is a diode of this type, and is mainly used to protect sensitive equipment from voltage transients caused by electrostatic discharges (ESD), lightening surges, and other external voltage surges.

Application Field

The SZ1SMB28AT3G has an excellent clamping capability, and is suitable for use in ports of all types, such as USB Type-C, USB 2.0, USB 3.1, and USB 3.2. It is mainly used in portable electronic devices such as laptops, tablets, cell phones, and other consumer electronic devices. Due to its low capacitance and fast response time, it is also ideal for automotive applications. Additionally, it is suitable for communication applications, where surge protection is a necessity to preserve the data quality and performance of the system.

Working Principle

When the SZ1SMB28AT3G is exposed to an external voltage surge, it quickly responds by clamping the voltage. This ensures that the sensitive components or circuits of the device are protected from possible damage. It operates by using the avalanche effect of its PN junction. When the voltage exceeds the device\'s breakdown voltage, a layer of electrons, or "avalanche", forms between the layers of the diode. As a result, the charge carriers from the diode move quickly to the area with the higher voltage, reducing the overall voltage of the system and ensuring the safety of sensitive components.

Conclusion

The SZ1SMB28AT3G is an important device for protecting sensitive components and circuits from voltage transients caused by electrostatic discharges, lightening surges, and other external voltage surges. It is suitable for use in ports of all types, consumer electronic devices, automotive applications, and communication systems. It works by clamping the voltage using its PN junction and the avalanche effect, thereby reducing the overall voltage and ensuring the safety of the components.

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