VE09M00250KDR

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TVS (Transient Voltage Suppression) Diode devices are used to protect circuits from Transient Voltage events. These are commonly called “surges” and come from electrical events such as lightning strikes, switching surges, and other high-current events. The VE09M00250KDR is a well known device used for this purpose. It is manufactured by Vishay across a wide range of applications.

The main applications of the VE09M00250KDR are in the areas of:

• Computer/Communications Systems
• Military, Aerospace, and Industrial applications
• Medical Devices
• Photovoltaics
• Test and Measurement Systems

The VE09M00250KDR is a Varistor device, better known as a Metal Oxide Varistor (MOV). It is a unidirectional, non-linear device used to clamp transient surges. As the voltage rises, the Varistor’s very high estimated leakage current limits the maximum voltage that can be applied to the protected circuit. This clamps the surge and keeps it from damaging circuit components.

The VE09M00250KDR is capable of withstanding surges up to 10,000 A for 100 microseconds. It also has an energy rating of 2 Joules, and is capable of handling up to 250 kV of peak surge voltage. The device has a very low reverse leakage current of 10 nA.

The working principle of the VE09M00250KDR is fairly straightforward. It consists of a metal oxide film, which acts as a current limiter, and two electrodes. As the surge voltage increases, the current flowing through the MOV increases. This causes a negative temperature coefficient, which increases the resistance of the MOV. As the voltage reaches the device’s rated clamping voltage, the MOV’s resistance increases, limiting the current flow and thus protecting the circuit.

To enhance the protection provided by the VE09M00250KDR, it can be “stacked” with other Varistor devices or with power distribution blocks. This increases the peak current rating of the device, thus providing greater protection for the circuit.

The VE09M00250KDR is a widely used Varistor device, and is suitable for a variety of applications. Its ability to handle up to 10,000 A of peak current makes it perfect for use in industrial and military applications, as well as in medical devices and photovoltaics. It is also a cost-effective solution for computer and communication systems.

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