MOV-14D330K

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MOV-14D330K is a surge protection device. It is an important component in electrical circuits to protect from transient over voltage. It is better known as a transient voltage suppressor or voltage-dependent resistor (VDR).

MOV-14D330K belongs to the Transient Voltage Suppressor (TVS) family. It is also classified under the family of Metal Oxide Varistors (MOVs). MOV-14D330K is a unidirectional, non-linear, non-inductive device. It serves the purpose of protecting the system from overvoltages. It can efficiently absorb large amounts of energy. This surge protector is mainly used in applications such as Automotive, Telecommunications and Industrial systems.

MOV-14D330K has two main electrical characteristics. It has the ability to clamp voltage as well as absorb large energy. Its clamp voltage is adequately high to protect the system and eliminate any transient overvoltage which might damage the circuit components. The energy absorption capability of MOV-14D330K is provided by the nonlinear property of the device.

The working principle of the MOV-14D330K is based on the internal properties of the metal oxide (MO) material which is used in its construction. The device is also known as the “metal oxide varistor”, this name is derived from its layer of metal oxide which is formed between two or more conducting plates on a semiconductor substrate.

When voltage is applied to the MOV-14D330K and the applied voltage is lower than the device’s voltage breakdown, the electrical current flows through the MO layer. A low electrical resistance is observed which allows the current to flow through the device thus, the operation of the MOV-14D330K is said to be in the “low-impedance state”.

When the voltage applied to the MOV-14D330K increases and reaches the breakdown voltage of the device, the current flow through the MO layer is interrupted and thus, the operation of the MOV-14D330K is said to be in the “high-impedance state”. The interruption of current flow causes the the device to absorb the energy due to the overvoltage and protect the system from the transient voltage.

In case the voltage surge persists for a long period and the device exceeds its peak voltage rating then the MOV-14D330K will be destroyed by melting down its MO layer thus, the device will completely fail. The MOV-14D330K has a peak voltage rating of 14 volts.

MOV-14D330K offers many features like the capability of withstanding frequent voltage surges and its design to prevent arcing, which increases its reliability and endurance. It is also resistant to shock and vibrational stresses, along with oxidation, aging, and dust accumulation as well.

Due to its various features, the MOV-14D330K is widely used in many applications such as PC systems, power supply units, audio and video systems, automotive and telecommunication systems. It is important to understand the working principle of MOV-14D330K for effective and safe utilization of devices.

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