ERZ-V20D151

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TVS (Transient Voltage Suppressors), Varistors (Voltage Dependent Resistors) and MOVs (Metal Oxide Varistors) are all commonly used in a variety of applications that require protection against transient or high voltage surges. The ERZ-V20D151 is an example of one such device. It is a non-polar Varistor designed for transient and over-voltage protection of low voltage circuits. This article will provide an overview of the applications in which the ERZ-V20D151 can be used, as well as its working principle.

ERZ-V20D151 Applications

The ERZ-V20D151 is a non-polar Varistor designed to protect low voltage circuits from transient or high voltage surges. It is commonly used in household electronics, especially appliances such as ovens, microwaves, and washing machines. Its maximum steady-state voltage rating of 400V and its high surge-handling capacity of up to 18,000A allow it to protect circuits from the effects of high-power transients, such as those caused by lightning strikes or short circuits. Additionally, due to its high energy dissipation, it can be used in automotive applications, where high peak transient voltages are often encountered. The ERZ-V20D151 is also commonly used in professional audio and video equipment, broadcasting, and telecommunications.

Working Principle

The ERZ-V20D151 is a non-polar Varistor, meaning it does not have an exact resistance value. Instead, its resistance varies depending on the level of the applied voltage. As the voltage applied to the ERZ-V20D151 increases, so does its resistance. At a certain threshold voltage (in this case, 400V) the Varistor will begin to conduct current and begin to dissipate energy as heat. This allows it to absorb the excess energy of an overvoltage and protect the circuit. The Varistor also acts as a voltage clamp by limiting the voltage to below a certain level. This helps to protect delicate components from the damaging effects of overvoltage.

Conclusion

The ERZ-V20D151 is a non-polar Varistor designed for transient and over-voltage protection of low voltage circuits. It can be used in a variety of applications, including household appliances, automotive, and professional audio and video equipment. Its high surge-handling capacity of up to 18,000A allows it to protect circuits from the effects of high-power transients. The working principle of the ERZ-V20D151 is based on its ability to vary its resistance depending on the applied voltage, as well as its ability to dissipate energy as heat and limit the voltage to a certain level. This provides effective protection from transient and overvoltage events.

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