V681HA40

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The V681HA40 is an epoxy-molded varistor or voltage-dependent resistor that can be used to protect electrical circuits from overvoltage transients. It is considered as a part of the TVS – Varistors, MOVs category of components. This component is typically used in signal line protection such as industrial automation, automotive applications, and consumer electronics.The V681HA40 is capable of handling overvoltage transients in the range between 14 V and 40 V peak. The component can support up to 200 A peaks without thermal derating, making it well suited for harsh environment applications. Additionally, the V681HA40 has a current rating of 70 A (8/20 μs waveform) and power rating of 1.2 W. The capacitance of this component is 80 pF, with its insulation voltage between terminals being at least 1 kV.The V681HA40 works by increasing resistance in the circuit when the voltage exceeds a certain threshold. This is accomplished through breakdown of the varistor’s semiconductor material. When this occurs, a sudden increase in resistance changes the overall circuit current and effectively limits transient voltages and their associated effects.The V681HA40 has a typical impedance of 5-10 ohms. Although this isn’t ideal for use with high frequency signals, it is suitable for AC and DC protection applications. Additionally, its negligible reverse leakage current makes it highly suitable for use with sensitive electronic components, such as those found in computers and medical devices.The V681HA40 is an effective way to provide transient protection in a wide range of applications. It has the technology needed to handle high surge currents while maintaining a low capacitance. It is relatively inexpensive and easy to install, making it a popular choice for many applications.The V681HA40 is a reliable and effective way to protect electronic circuits from overvoltage transients. Its fast-acting response and relatively low cost make it a good choice for many applications. It is capable of handling up to 200 A peaks and is suitable for use with AC and DC voltages in the 14 V to 40 V range. Its low capacitance also makes it ideal for sensitive electronics, such as those found in medical and computer applications.

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