V18MLA0805NH Circuit Protection

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Varistors, MOVs, and other Transient Voltage Suppressors (TVS) are used in many applications, from protecting consumer electronics from power surges and electricity spikes to defending critical components in industrial equipment. The V18MLA0805NH is a proprietary TVS model developed by Surge Components Inc., and is designed to provide superior protection from voltage spikes for automotive, industrial, and consumer electronics applications. This article will provide an overview of the device’s application field as well as a detailed explanation of its working principle.

Application Field of V18MLA0805NH

The V18MLA0805NH Varistor is designed for use in automotive, industrial, and consumer electronics applications. In automotive applications, the device is perfect for protecting against damage caused by voltage spikes due to engine cranking, reverse polarity, and overvoltage conditions. In industrial applications, the V18MLA0805NH is used to protect sensitive equipment from overvoltage spikes generated by lightning as well as by industrial power sources. In consumer electronics applications, the device provides protection against voltage spikes from utility sources as well as from mishandling of cables and cords while equipment is in operation.

Working Principle of V18MLA0805NH

Transient Voltage Suppressors (TVS) are designed to detect voltage surges and to dissipate that energy to protect the circuitry connected to them. The V18MLA0805NH is a type of TVS known as a “Varistor”, which is designed to provide superior protection from voltage spikes. In operation, when the voltage exceeds a certain threshold, the V18MLA0805NH is activated and acts as a short-circuit, routing the surge away from the connected component. The device works in two stages. The first stage is the “breakdown stage”, in which the device is triggered and a short circuit is formed. In the second stage, “dissipation”, the short circuit dissipates the energy away from the protected component.

The V18MLA0805NH is designed to protect against high energy voltages with a peak pulse power rating of 600 Watts, so it can handle voltage spikes up to 42V. It has a maximum clamping voltage of 26V nominally, and can be used with both AC and DC voltages. The device is RoHS compliant, and has a wide operating temperature range from -40°C to +105°C, making it suitable for use in areas with extreme temperatures. It is also designed to have a low capacitance, making it suitable for high speed applications and preventing signal loss.

Overall, the V18MLA0805NH is an excellent Transient Voltage Suppressor (TVS) for use in automotive, industrial, and consumer electronics applications. The device’s superior protection capabilities and low capacitance make it an ideal solution for protecting sensitive components from voltage spikes.

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