VE09M00400KDR

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VE09M00400KDR is a varistor, also known as voltage-dependent resistor (VDR). Varistors are semiconductor devices that are designed for use in applications where they need to be protected from transient electrical surges such as those caused by lightning strikes or power glitches. A varistor is basically a resistor that behaves differently when subjected to voltages above its rated voltage. A varistor provides a very low resistance to the applied voltage when the voltage is below its rated value. However, when the voltage is above its rated value, the varistor exhibits a very high resistance to the applied voltage, thus protecting the device from the voltage surge.

The VE09M00400KDR is a metal oxide varistor (MOV). A MOV is a two-terminal component consisting of a Disk-type zinc-oxide (ZnO)-based ceramic body with metal electrodes attached to both sides. When a voltage is applied, the ZnO material, in response to the applied voltage, becomes a conductor rather than an insulator. It has a high electrical resistance until a specific voltage is applied, at which point it quickly reduces its resistance, enabling the application of the voltages. This ability to rapidly reduce resistance is beneficial in providing low power dissipation.

The working principle of the VE09M00400KDR is based on a metal oxide semiconductor junction. When a voltage is applied, the ZnO material of the MOV becomes conductive, which reduces the resistance of the MOV. This process enables the MOV to absorb the transient electric surges, thus protecting the application from any damage they may cause.

The VE09M00400KDR can be used in various applications such as power supplies, lighting ballasting systems, surge protectors, motor controllers, UPS systems, telecommunication systems, and military equipment. The MOV will protect components from electrical transients or voltage spikes that can cause damage to the equipment or system. It also helps to reduce electrical noise that can interfere with signals in the system, allowing for smoother system performance.

In summary, the VE09M00400KDR is a varistor, more specifically an MOV, designed to provide protection from transient electrical surges. It is a two-terminal component consisting of a Disk-type ZnO-based ceramic body with metal electrodes attached to both sides. When a voltage is applied, the ZnO material, in response to the applied voltage, becomes a conductor rather than an insulator, thus reducing resistance and dissipating the transient electrical surge. The VE09M00400KDR can be used in various applications such as power supplies, lighting ballasting systems, surge protectors, motor controllers, UPS systems, telecommunication systems, and military equipment.

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