VDRH20X550BSE

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TVS (Transient Voltage Suppressors) and varistors are voltage protection devices that are commonly used in all kinds of electronic circuits, especially in AC/DC converters, laptops, cell phones and other mobileelectronic devices. Although they\'re similar in function, they have different characteristics, and the models used for each application are different. In this article, we\'ll explore the application field and working principle of a particular TVS, the VDRH20X550BSE.

The VDRH20X550BSE is a transient voltage suppressor diode designed for providing ESD, surge and lightning protection. It\'s designed for use in AC/DC converters, laptops and other portable electronic devices, where a small, low-profile form factor is desired. The device comes with a peak pulse power rating of 20W, an avalanche voltage of 550V and a breakdown voltage of 280V. It has a low capacitance of 5pF for quick response time, and low leakage current for low power consumption.

In terms of application field, the VDRH20X550BSE is ideal for various applications such as overvoltage protection, ESD protection, surge protection, line-to-ground transient protection, and lightning protection. It can be used as either a secondary or primary protection, depending on the application. The device is particularly suitable for applications where there is a potential for both high current and high voltage to present themselves. It can also be used in applications that require a low capacitance, low leakage current and a fast response time.

The VDRH20X550BSE has a simple functioning principle: it utilizes the avalanche voltage of the diode to protect the circuits from transient over-voltage situations. When a voltage spike or surge higher than the breakdown voltage (280V) of the diode occurs, the diode starts to conduct, diverting the current away from the protected components and dissipating it to ground. The avalanche voltage of the device (550V) limits the voltage of the surge so that the protected components are not damaged.

The VDRH20X550BSE is an ideal choice for protecting electronic devices from over-voltage situations. It\'s small, low-profile form factor makes it perfect for portable devices, and its low capacitance and leakage current, along with its rated pulse power and avalanche voltage provide superior protection against voltage surges or transients. As such, it can provide reliable protection in a variety of applications, making it a go-to device for device protection.

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