VG181256U111DP Circuit Protection

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The VG181256U111DP is a kind of metal oxide varistor (MOV), which is a voltage-dependent resistor. It is mainly used to protect sensitive electronics from transient voltage pulses that may otherwise cause irreparable damage to these devices. To understand the working principle of the this MV, it is important to understand what a varistor actually is, and how it works.

A varistor is an electrical component that has a non-linear, voltage-dependent resistance. This means that its resistance changes according to the voltage applied to it. When a certain voltage level is exceeded, the varistor will be activated and its resistance will abruptly increase to protect the connected electronic device against the potentially dangerous voltage overload. This is the purpose of the VG181256U111DP. It is designed to absorb excess voltage by providing an alternative pathway for the current to travel, reducing the incoming voltage, preventing it from damaging the connected circuit.

The VG181256U111DP is a low-capacitance bidirectional, MOV-based transient voltage suppression (TVS) device. It is composed of a metal oxide varistor element, a capacitor, diodes, and resistors. The diode clamps are used to clamp positive and negative peak voltages at the peak operating voltage specified in the data sheet. The device also incorporates an internal capacitor for low-capacitance protection. It is capable of shorting high voltage spikes, thus preventing damage to the protected device.

The VG181256U111DP can be used in many different application, such as computers, audio-visual equipment and telecommunications systems. It can also be used in motor control circuits in order to provide over-voltage protection. This device typically operates between -10V and 17V, with a peak breakdown voltage of 18V. It can withstand high peak transient voltages and surge energy levels of up to 261 joules and a rated current of 1.11 A. It is also UL 1449 certified and RoHS compliant.

The VG181256U111DP is a reliable, cost-effective solution for protecting sensitive electronics from transient voltage pulses. It is designed to activate and protect the connected circuit when a certain voltage level is exceeded. Its low-capacitance design and its ability to short high voltage spikes make it an ideal choice for various industrial and consumer applications. It is a great way to ensure that your circuit is protected from sudden electrical surges, and it will help to extend the life of your equipment.

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