V420LS40BP

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TVS (Transient Voltage Suppressor) devices, such as varistors, MOVs, and the V420LS40BP, are considered essential components when designing power electronic circuits. They are designed to protect critical components and wiring from unexpected electrical transients and surges, and are widely used in various fields, including telecommunications, industrial equipment, automotive, data centres, medical devices and consumer electronics.

The V420LS40BP is part of Vishay\'s LS-product line of metal oxide varistors (MOVs), designed to provide surge protection in a compact form. MOVs are particularly suitable in applications that require strong protection against transients and ESD events, as they provide very good protection against surges.

The V420LS40BP provides excellent ESD protection, and its excellent surge performance is due to its wide operating voltage range. It covers from 16V to 53V, with a highly stable capacitance of 420pF and a clamping voltage between 19V and 211V. This guarantees effective suppression of high-frequency ESD-induced transients, as well as protection against a wide range of electrical over-voltage events.

The working principle of the V420LS40BP is based on a simple circuit design. It consists of a series combination of a break-down diode and a MOSFET connected in parallel with the MOV. The break-down diode provides a low-resistance current path while the MOSFET enables a high-level switching capacity. This ensures a fast and reliable response to transients and ESD events.

The V420LS40BP is suitable for a variety of applications, including power supplies, automotive equipment, and telecommunications. It is also suitable for industrial equipment and consumer electronics, such as electronic toys, appliances and laptop computers. Additionally, it is RoHS compliant, and its small footprint makes it ideal for applications where space is a constraint.

In conclusion, the V420LS40BP is a reliable, cost-effective surge protector for a wide variety of applications. It offers excellent ESD and surge protection with a wide operating voltage range, and is suitable for a variety of applications including power supplies, industrial equipment, automotive and consumer electronics. It is an ideal solution for applications where space is a constraint, as its small footprint makes it easy to implement.

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