VA1812K801R014

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TVS - Varistors, MOVs are one of the most important components of most modern electronic circuits, as they provide voltage protection when the circuit is exposed to high voltage or current surges. VA1812K801R014 is a high-voltage, high-current transient voltage suppressor, designed to limit overvoltage transient events and to protect the circuit from damage due to electrical surges. Its application fields and working principles are discussed below.

Application Field and Working Principle of VA1812K801R014

VA1812K801R014 is a Varistor TVS with a 12V spare voltage response time of 100ns. It is designed to clamp high voltage transient spikes to a safe level and provide transient protection for electronic circuits. It is suitable for various applications in system power systems, monitoring systems, instrumentation, etc. It is especially suitable for mobile terminals, servers, xDSL power supplies, laptop computers, industrial control, automotive electronics, medical electronics, and other areas.

Its operating voltage is 8~18 V, the maximum peak pulse current is 2400A (8/20us), the breakdown voltage is 14~17 V, and the capacitance value is 11pF. The MA1812C801R014 is constructed with an aluminum nitride varistor and two PN junctions, and withstanding voltage up to 25 kV. The MA1812C801R014 uses the junction capacitance of the two PN junctions to keep the response time of the device below 100 ns. When there is a high voltage transient event, the varistor can quickly increase its resistance and limit the voltage to a safe level.

The MA1812C801R014 features a low operating power and is capable of clamping 24 A (8/20 μs) pulses. The clamping voltage is equal to the breakdown voltage plus the turn-on voltage of the Varistor. This makes it ideal for many applications where high-voltage protection is required. It is also capable of clamping higher peak pulse currents over longer durations when coupled with a current limiting resistor or diode.

The MA1812C801R014 is designed with a built-in protection element to efficiently protect the varistor against electrostatic discharge. When a high voltage surge is detected, the varistor quickly limits the voltage to a safe level and dissipates the surge current, effectively protecting the circuit from damage. Additionally, the MA1812C801R014 is designed for high voltage, high-temperature environments, which makes it suitable for use in applications with extreme temperatures.

In summary, VA1812K801R014 is a high-voltage, high-current transient voltage suppressor, designed to limit overvoltage transient events and to protect the circuit from damage due to electrical surges. It is suitable for various applications in system power systems, monitoring systems, instrumentation, etc. It is especially suitable for mobile terminals, servers, xDSL power supplies, laptop computers, industrial control, automotive electronics, medical electronics, and other areas.

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