9401370000

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A varistor, also known as a voltage-dependent resistor (VDR), is an electronic component with a nonlinear, voltage-dependent resistive characteristic. Varistors are used to protect circuits from over-voltage transients, such as those caused by lightning or other power surges. They are typically of two-terminal disc shape, and may be assembled into arrays or networks. Varistors are also known by a variety of other names, including metal oxide varistor (MOV), voltage suppressor, over-voltage suppressor (OVS), surge arrester, and surge diverter.TVS (transient voltage suppressors) are similar to varistors in function, but are bi-directional devices designed to operate over a wider range of overvoltage conditions. Transient voltage suppressors are typically three-terminal components that clamp voltage spikes down from either side of the line. While varistors and MOVs offer limited bidirectional protection, TVS are designed to protect against high-voltage and surge events with a wider protection range.

The 9401370000 is a common type of varistor that is designed to provide over-voltage protection. This component is a bidirectional VDR, which means it can provide protection against both positive and negative voltage transients. Its protective characteristics are based on its nonlinear, voltage-dependent resistance which is between zero and an ohm. This resistance is designed to increase as the voltage level increases, thus providing more protection from over-voltage transients. The 9401370000 is rated at an operating voltage of 415V. It is also rated for a clamping voltage of 750V and has a maximum surge current rating of 40A.

The 9401370000 performs its voltage-dependent resistance function by relying on the nonlinear properties of its metal oxide varistor (MOV) element. MOVs are typically made from a zinc oxide (ZnO) ceramic material that exhibits a low-resistance high-voltage characteristic. When exposed to an over-voltage, the electrodes of the MOV depolarize, creating a movement of electrons within the ceramic material. This causes an increase in resistance, thus clamping the over-voltage. The amount of resistance generated depends on the voltage level and the construction of the MOV element.

Varistors and MOVs have become a common form of over-voltage protection for many applications. They offer a great deal of protection from voltage transients and are easy to install. Varistors and MOVs are available in a wide range of voltage ratings, ranging from 200V to 1500V. The 9401370000 is a good example of a low-priced varistor that will provide protection for a wide range of applications.

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