V481HA40

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TVS (Transient Voltage Suppressors) Varistors, MOVs (Metal Oxide Varistors) are important components used in many electrical and electronic circuits for voltage protection. This article will discuss the application field and working principle of V481HA40, a THT (Through Hole Technology) MOV.

The V481HA40 is an example of a surface-mounted MOV, also known as an SMD or SMA variety of MOV. This MOV is designed to protect electronic components such as diodes, transistors, and other semiconductor devices from overvoltage and overcurrent conditions. This overvoltage and overcurrent protection helps to reduce the risk of damage to the electrical components due to lightning, motor starting, and many other similar phenomenon.

The V481HA40 offers consistent performance and reliability in a wide range of voltage, frequency, and operating temperature conditions. This MOV is also designed to provide high durability, low temperature coefficient, and low leakage current. The MOV has a rated voltage of 400V and a maximum current of 25A. It is designed to be used in circuits with sensitivities of up to 6V.

The working principle of the V481HA40 is based on the metal-oxide varistor (MOV) technology. This type of technology has been developed over the years to provide high-performance protection from electrical overvoltages and overcurrents. An MOV consists of two metal plates that are separated by an insulating material. The plates contain a large number of discrete metal oxides, which are semiconductor electrical materials that have an electrical resistance that increases as the voltage across them increases.

When an overvoltage or overcurrent is applied to the MOV, the metal oxides start to break down, creating a conductive path between the two plates that is proportional to the applied voltage or current. This reduces the voltage or current across the protected circuit and prevents damage to the electrical components. The rate at which the MOV breaks down is determined by the design of the MOV and the materials used in its construction.

The V481HA40 can be used in various applications, such as in DC/DC converters, surge suppression circuits, power supplies, and motor protection systems. It is also suitable for use in sensitive electronics and telecommunications applications. The MOV is also UL approved for use in most applications, and it is RoHS compliant.

In conclusion, the V481HA40 is an example of a surface-mounted MOV that offers consistent performance and reliable protection from electrical overvoltages and overcurrents. It is designed to work under a range of voltage, frequency, and temperature conditions, and it can be used in various applications, such as DC/DC converters, surge suppression circuits, power supplies, and motor protection systems. The working principle of the MOV is based on the metal-oxide varistor technology.

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