VE17P00251KED

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TVS (Transient Voltage Suppressors) are a type of electricity-control devices that protect against excessive voltage transients. Varistors and MOVs (Metal Oxide Varistors) are two types of these devices that serve different purposes and have different working principles.

VE17P00251KED is a varistor. Generally speaking, varistors are designed to reduce the impact of transient voltage. They contain a ceramic core material (also known as varistor material) that is formed by the interlocking of several layers of aluminium-silicate. When exposed to an overvoltage, the material is able to reduce or “clamp” the voltage across the component by dropping its resistance. The dissipation of the energy causes the varistor material to heat up. The entire voltage-clamping process takes only a few nanoseconds, and the varistor is able to withstand up to several thousand volts.

The VE17P00251KED is designed for high speed and high power applications. It has an operating voltage of 17V and a maximum peak pulse current of 250KA. It is also able to operate over a wide temperature range from -55°C to 125°C. The device is highly reliable and has a long operational life, thanks to its superior heat dissipation and temperature stability.

MOVs, on the other hand, are designed to protect against overvoltage. They contain a metal oxide layer which is connected between two electrodes. When the electrical current flowing through the MOV exceeds its tolerance level, the metal oxide layer begins to break down and dissipates the excess energy. This process occurs rapidly, limiting the voltage across the component. MOVs are ideal for surge protection applications due to their fast response time and high surge current handling capability.

In conclusion, both Varistors and MOVs are used in various protection applications and have their own advantages and disadvantages. Varistors provide an efficient way of controlling transient voltages, while MOVs provide protection against overvoltage. VE17P00251KED is an example of a varistor that is designed for high speed and high power applications. It is highly reliable and able to withstand up to several thousand volts.

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