V480LA7PX1347

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TVS - Varistors, MOVs, are designed to protect electrical circuits from high-voltage transients. Specifically, the V480LA7PX1347 is a radial lead chip varistor that is designed to limit and absorb transient voltage and to protect sensitive electronic equipment from inadvertent damage. The V480LA7PX1347 is an automotive-grade varistor that offers excellent transient protection in automotive and other similar applications.

The V480LA7PX1347 is composed of a number of small ceramic discs that are die-stamped with a zinc oxide composition and sealed with epoxy resin. The discs are arranged to create an alternating series of high-voltage and low-voltage ceramic junctions. These junctions form the basis for the capacitance and impedance characteristics of the device. The basic structure of the V480LA7PX1347 is similar to other varistors, however the die-stamping of the discs enables better performance.

The V480LA7PX1347 features a clamping voltage of 400V maximum, a response time of 200ns, and a maximum current capability of 66A with a maximum energy of 10uJ. It is UL recognized to UL1414 and IEC 61945, qualified to Automotive Electronics Council standards AEC-Q200, and has a maximum temperature rating of 155°C. The device is RoHS compliant and has a high surge current rating of 1000A.

It is designed to provide protection from transient voltage events of up to 1000A for periods of up to 5ms. It is also capable of providing overvoltage protection up to 400V. This versatile varistor is suitable for a wide range of automotive and other applications, such as power supplies, switched mode power supplies, and automotive ignition systems.

The working principle of the V480LA7PX1347 is relatively simple. When a voltage transient is applied, the electric field generated between the discs creates a capacitance. This capacitance causes a voltage drop along the resistor, thus limiting and reducing the energy of the transient. The resistor is also designed to absorb the energy of the transient and dissipate it as heat. This protects the circuit from any potential damage from the surge.

In summary, the V480LA7PX1347 is a radial lead chip varistor that is designed to limit and absorb transient voltage. It is suitable for a wide range of automotive and other applications, and features a clamping voltage of 400V maximum, a response time of 200ns, and a maximum current capability of 66A with a maximum energy of 10uJ. The working principle of the V480LA7PX1347 is relatively simple, as it is designed to provide protection from transient voltage events of up to 1000A for periods of up to 5ms, and to absorb and dissipate the energy of the transient as heat. As a result, it provides excellent protection from inadvertent damage.

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