VDRS07H320BSE

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TVS (Transient Voltage Suppressors) are capable of providing overvoltage protection and high-speed operation for electronic components and equipment. They are designed to provide protection against transient overvoltage conditions and can be used in a variety of applications where an overvoltage condition may occur. The VDRS07H320BSE is one such device. This application note explains the types of applications for which the VDRS07H320BSE is best suited and the principles of operation of this device.

Application Fields

The VDRS07H320BSE is a high-performance transient voltage suppressor (TVS) suitable for a wide range of applications, from communications and consumer goods to industrial and automotive. The device is designed to meet the challenges of providing overvoltage protection in a variety of electronic products, from portable consumer devices to medical and automotive applications.

The VDRS07H320BSE is capable of providing an overvoltage protection of 29V to 32V, ensuring that critical components and circuits are protected in the event of a voltage surge. The device also offers excellent power capability with peak power dissipation up to 1.1kW, allowing for reliable protection in a wide range of conditions. Additionally, the device can provide fast response times of less than 1us and a low leakage current of less than 1 microA.

The VDRS07H320BSE is suitable for use in applications including personal computers, video game consoles, digital cameras, printers, HVAC systems, automotive systems, wireless communication systems, and more. Additionally, the device can provide protection for modern components that require low power consumption and high-speed data tranmission, such as LCD and LED displays.

Working Principle

The VDRS07H320BSE is a Metal Oxide Varistor (MOV) which employs a positive temperature coefficient (PTC) of resistance to reduce the current flow through the device in the event of a voltage surge. The PTC effect causes the device to increase its resistance with increases in temperature. This ensures that when there is an overvoltage condition, the current is diverted away from the sensitive parts of the circuit and dissipated to ground. This limits the voltage overshoot which can potentially damage sensitive components.

The device is designed to remain in a low-resistance state during normal operation, with a leakage current of less than 1mA and hot resistance of less than 20 ohms. As a voltage surge occurs, the resistance of the device increases, limiting the current flow and dissipating the excess voltage as heat. The VDRS07H320BSE can dissipate large amounts of power, up to 1.1kW, ensuring that it can handle even the largest surges.

The VDRS07H320BSE is also designed to operate in harsh environments. It is capable of withstanding temperatures from -55°C to +125°C and is RoHS compliant, ensuring that it will not be affected by environmental contaminants. Additionally, the device is lead-free and halogen-free, making it suitable for use in a variety of applications.

Conclusion

The VDRS07H320BSE is an excellent choice for applications that require fast response times and power capability in harsh environments. The device is capable of providing overvoltage protection up to 29V to 32V and can dissipate peak power up to 1.1kW. Additionally, the device\'s low leakage current and hot resistance ensure that it will remain in low resistance state during normal operation. The VDRS07H320BSE is well suited to applications including personal computers, HVAC systems, automotive systems, and more, making it a valuable asset in many applications.

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