V385LC40CP

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TVS-Varistors, MOVs are a type of surge protectors, consisting of a rod-like construction made up of a non-linear, semiconductor component that can be connected across a DC line to limit voltage transients. The device is designed to provide protection from a variety of overvoltage risks, such as lightning, electrostatic discharge (ESD), inductive surge, and electrical transients. Varistors, MOVs are the most commonly used surge protectors, due to their low cost and wide availability. They are also well known for their high surge current ratings and fast response times.

The V385LC40CP is a varistor manufactured by Vishay. It is a 40V, 5500A product for the discrete board level protection of sensitive components against voltage transients. This varistor is specifically designed to provide overvoltage protection for high performance electronics, and has a host of features to offer.

Application Fields

The V385LC40CP is suitable for use with common line terminals. Additionally, it can be used in direct connection to DC power terminals, although the connection should be made with the minimum power conductor. It is an ideal device for protecting sensitive electronics from high frequency, short duration voltage surges.

The V385LC40CP is suitable for use in a variety of applications, such as automotive, consumer, industrial, and telecommunication. It can be used in applications where overvoltage protection is required, including power supplies, power distribution systems, telecom systems, and computers. It is also suitable for multimedia equipment, digital TVs, and portable devices.

Working Principle

The V385LC40CP is an electrostatic discharge (ESD) clamp. When a surge event occurs, it clamps the overvoltage to a safe level, thus protecting sensitive equipment from permanent damage. The device uses a special non-linear semiconductor material, composed of two different layers of P-type and N-type doped semiconductor material. This material has a corrosion resistant and low leakage current rating (up to 10µA). During an overvoltage event, the current flows through the varistor, thus reducing the voltage across the semiconductor. The device clamps the voltage to the breakdown voltage of the varistor.

The V385LC40CP is made up of an array of highly conductive electrodes. These electrodes are typically constructed from an oxide compound, which transmits the electrical current during an ESD event. The device also features a two stage clamp that is able to resist high and low voltage surges, with a maximum peak current rating of up to 5500A. This device has an operating temperature range of -40°C to +125°C.

Benefits

The V385LC40CP offers numerous advantages for overvoltage protection, including fast response times, high surge current ratings, high reliability, and low leakage current. It is designed to be RoHS compliant, as well as compatible with lead-free products. This device also features electrical performance that exceeds industry standards, and superior temperature stability.

The V385LC40CP offers fast overvoltage protection, with a response time of less than 2.5nsec. This short response time ensures that sensitive products are not damaged due to prolonged exposure to overvoltage. This product also features Ultra-MOV technology, which eliminates the need for overvoltage protection fuses, thereby saving costs. Additionally, it features superior EMI/RFI shielding and is designed to meet UL 94V-0 flammability standards.

Conclusion

The Vishay V385LC40CP is a varistor specifically designed for direct board level protection of sensitive products from voltage transients. It is suitable to be used with common line terminals, and in many different applications. Its features include fast response times, high reliability, low leakage current, excellent EMI/RFI shielding, and RoHS compliance. It is also designed to meet UL standards and provide reliable overvoltage protection. Overall, the V385LC40CP is an ideal choice for board level overvoltage protection.

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