MOV-14D270K

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The MOV-14D270K is a metal-oxide varistor (MOV) which is a type of Transient Voltage Suppressor (TVS) component. It is specifically designed to absorb surges in power supply lines. MOVs are commonly used on both AC and DC lines for protection of sensitive electronic components from electrostatic discharge (ESD) or other transient overvoltage events.

The MOV-14D270K is a component which consists of a special ceramic material which is dielectrically coated with a metal oxide layer. This metal oxide layer is compressed to create a piezoresistive effect, which allows the MOV to function as a non-linear electrical resistor. When exposed to a surge in power supply drive of sufficient voltage, the MOV increases its electrical resistance and absorbs the excessive current.

The MOV-14D270K has a maximum voltage of 14V and a peak surge current rating of 270 kiloamperes or kA. This is suited for applications which require protection from short duration surges which typically range from 10 pulsed to 8 continuous or repetitive surges. The MOV-14D270K is also suitable for situations requiring low capacitance, high energy density, and low dissipation factors.

MOV-14D270K is typically used in applications to protect electronic devices from high energy transients such as avionics, medical equipment, automotive components, and telecom systems. It can also be used for general protection of connected power equipment, such as uninterruptible power supplies, from voltage spikes, which are a common cause of power outages. The MOV-14D270K is suitable for these applications due to its fast response time and its superior ability to absorb large voltage transients.

The working principle of the MOV-14D270K is based on an effect called the piezoresistive or piezoelectric effect. This effect occurs when a force is applied to a solid material and the solid deforms due to the stress caused by the force. The resulting deformation creates a resistance change, which is proportional to the applied force. This effect is used in MOV-14D270K to give it its nonlinear electrical resistance characteristics which are necessary for effective power surge protection.

When exposed to a surge current, the MOV-14D270K increases its electrical resistance, thereby limiting the amount of current that can flow through it. The MOV can only absorb a certain amount of energy before it dissipates it as heat. This is why it is important to use the right MOV for your application in order to guarantee the longest possible life expectancy.

In conclusion, the MOV-14D270K is a type of TVS component designed to protect sensitive electronic components from overvoltage transients. It works by increasing its electrical resistance when exposed to a surge current, and dissipating the excess energy as heat. This makes it suitable for applications such as avionics, medical equipment, telecom systems, and power protection.

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