VGAS181231P650DP Circuit Protection

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TVS - Varistors, MOVs : VGAS181231P650DP application field and working principle

Introduction :

VGAS181231P650DP is a varistor which is also known as a voltage-dependent resistor (VDR). It is a non-linear semiconductor device with sloped surface resistance and high capacitance. The VGAS181231P650DP employed in personal electronic components, as part of a suppression circuit, provides excellent protection against overvoltage transients, such as electrostatic discharge (ESD), overvoltage caused by lightning strikes or power surges. Moreover, they can be found in Telecommunications & automotive industry, household appliances, solenoid, and motors.

Working principle :

When an external voltage exceeding the rated voltage of a varistor, its internal resistivity drastically drops, resulting in the flow of large amounts of current. The VGAS181231P650DP is a voltage dependent resistor because its resistance decreases with increasing external voltage. This type of non-linear behavior is called a "clipping" voltage behavior of the VGAS181231P650DP. It is widely used as a protection device for electrical and electronic circuits for a wide range of voltage inputs and outputs.

The VGAS181231P650DP includes a number of features that make them an attractive choice for protecting digital circuits. A key factor in the performance of VGAS181231P650DP devices is their resistance-to-voltage ratio. At low voltages, they have a low linear resistance, which provides a low impedance to the circuit, helping protect against static discharging or over voltage from ESD or electromagnetic interference (EMI). At high voltages, the VGAS181231P650DP\'s resistance has a much lower slope, meaning that the high voltage gain in the circuit is quickly diminishing. This helps protect against sustained, atypical voltage fluctuations caused by lightning and power supply surges.

Applications of VGAS181231P650DP :

VGAS181231P650DP is widely employed in personal electronics circuits. They provide excellent protection against ESD, overvoltages induced by lightning strikes and power surges. Its non-linear behavior, high capacitance and sloped surface resistance makes it an excellent choice for surge protection. Moreover, VGAS181231P650DP can also be used in consumer products, such as digital cameras, cell phones, portable medical devices, home appliances, motor control, power supplies, and automotive industry.

Conclusion :

VGAS181231P650DP provides effective protection against ESD, overvoltage from lightning strikes and powerline surges. Its wide range of applications, excellent performance, and affordability makes VGAS181231P650DP an attractive choice for a variety of voltage protection scenarios.

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