V100MA4B Circuit Protection

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The V100MA4B is a universal electric module that works as a transient voltage suppressor (TVS) or a metal oxide varistor (MOV). It is typically used to suppress over voltages and surges, and is suitable for automotive, industrial, communications and consumer electronics applications.

A TVS is a bidirectional or unidirectional semiconductor device with a high peak pulse current rating and fast-acting breakdown characteristics. It is designed to protect sensitive circuits from damaging overvoltages caused by inductive switching, lightning, or other sources. The V100MA4B has a breakdown voltage of 12V and a minimum breakdown power rating of 110 watts. It is also available with a maximum operating temperature up to 167 °C.

A MOV is an electronic component designed to limit overvoltage transients. It is essentially a resistor that changes value depending on the amount of voltage applied across its terminals. The V100MA4B has a clamped breakdown voltage of 30V and a maximum peak pulse current rating of 2000A. It also has a series resistance of 100 Ohms and a capacitance of 1.0 pF. The total capacitance of the device is 2.0 pF, which helps to reduce the amount of transient energy absorbed. The V100MA4B is also UL1449, CSA C22.2, and VDE-approved, further improving its reliability and safety.

The working principle of the V100MA4B is simple. When the voltage across its terminals is greater than the breakdown voltage, a conductive path forms within the device. This conducts the excess energy away from the protected system and dissipates it as heat. During normal operations, the device has very little impedance and hence does not affect circuit operation.

In summary, the V100MA4B is a versatile module that serves as both a transient voltage suppressor and metal oxide varistor. It provides an effective and economical solution for protecting sensitive circuits from the effects of overvoltage transients. It has high peak pulse current capabilities, fast-acting breakdown characteristics, and a low series resistance. Lastly, the V100MA4B is UL1449, CSA C22.2, and VDE-approved, providing the assurance of safety and quality.

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