V275LS20AP Circuit Protection

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TVS (Transient Voltage Suppressors) and MOVs (Metal Oxide Varistors) are the two most popular types of Varistors used in many high-voltage applications, especially in the power electronics sector. Their primary purpose is to reduce and manage over-voltage transients by providing protection to electronic equipment.

The V275LS20AP is one of the top-quality TVS- MOVs manufactured by Littelfuse. It has a wide operating frequency range, from 45 Hz to 20 kHz, making it suitable for high-frequency applications. It also has a low leakage current of less than 5µA and high surge current up to 30 A. This makes it perfect for use in highly sensitive circuits and for protecting against transient over-voltages, while maintaining low losses.

The V275LS20AP device has a clamping voltage rating of 278 Vdc (max.), making it well-suited for higher voltages. It is designed to dissipation energy of up to 0.8J at 1,000V/µs. Furthermore, it has a high surge capability, which enables it to withstand high surge currents up to 30A, making it an ideal choice for many HVAC, automotive, and industrial applications, where protecting delicate components from damage due to over-voltage transients is of paramount importance.

Its primary function is to limit voltage transients in the electronic circuit. It does this by providing a path for the transient current to flow safely away from sensitive components. This reduces the peak voltage of the transient, helping to reduce the probability of component failure or permanent damage to the equipment. It also acts as a filter, reducing the effects of electromagnetic interference (EMI) and ensuring that the circuit operates smoothly.

The device works on the principle of avalanche breakdown. When an over-voltage transient passes through the device, it generates a voltage differential across the MOV\'s leads. Due to the high resistance of the MOV\'s material, the voltage differential becomes too high and begins to break down the material, resulting in an avalanche breakdown. This breakdown allows electrons to flow freely through the MOV and lessen the force of the transient.

The V275LS20AP TVS-MOV is a reliable and highly efficient device that is ideally suited for protecting against over-voltage transients in automotive, HVAC, and Industrial applications. Its low leakage current, high surge capabilities, and wide frequency range make it ideal for high-freq1uency applications. Its voltage clamping capabilities allow it to dissipate 0.8J of energy at 1,000V/µs, and its avalanche breakdown principle makes it incredibly effective at reliably reducing the effects of transient over-voltages.

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