1SMB5.0AT3

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TVS - Diodes are used to protect sensitive electronic circuits from excess static electricity and high-voltage power surges. One of the most popular types of TVS is the 1SMB5.0AT3. In this article, we will discuss the application field and working principle of this product.

The 1SMB5.0AT3 is a popular low-capacitance TVS diode specifically designed for use in high-speed data lines, such as USB3.0. As the USB signal speed increases, the need for high quality TVS diodes to protect the data lines and sensitive components from overvoltage and EOS events increases. This is where the 1SMB5.0AT3 shines. It has an ultra-low capacitance of 0.3pF, which reduces signal degradation and crosstalk, while providing fast response times in the event of an overvoltage or EOS event.

In addition to USB3.0 lines, the 1SMB5.0AT3 can also be used in other high-speed data interfaces, such as HDMI, DisplayPort, and Thunderbolt. It offers a maximum surge current of 4A and a clamping voltage of 4.6V, making it a perfect choice for these applications. Additionally, the 1SMB5.0AT3 is RoHS compliant and halogen-free, making it a safe and reliable choice.

So, how does the 1SMB5.0AT3 work? In the event of an overvoltage or EOS event, the diode will act as a shunt across the I/O line, diverting the excess current away from the sensitive components. Its series resistance will reduce the voltage across the diode and limit the amount of current that can be diverted. This will help to protect the sensitive components and prevent damage.

In conclusion, the 1SMB5.0AT3 is a popular low-capacitance TVS diode specifically designed for use in high-speed data lines such as USB3.0, HDMI, DisplayPort, and Thunderbolt. It has a maximum surge current of 4A and a clamping voltage of 4.6V, while offering fast response times in the event of an overvoltage or EOS event. Its series resistance helps to protect sensitive components from damage by limiting the amount of current that can be diverted. This makes the 1SMB5.0AT3 an ideal choice for these applications.

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