VE24P00211K Circuit Protection

TVS (Transient Voltage Suppression) - Varistors, MOVs are important components to consider in assuring an equipment’s ability to function reliably in an electrical environment. Varistors and MOVs are two popular TVS devices, designed for either surge suppression or overvoltage protection. VE24P00211K is one of the most common types of TVS devices. It belongs to the Varistor category.

Varistors and MOVs Definition

Varistors and MOVs are metal oxide varistors (MOVs) or transient voltage suppressors (TVSs), developed using zinc oxide as the core component. A varistor consists of a ring of zinc oxide grains enclosed in an insulating material, like glass. The MOV, on the other hand, is built as a ceramic disk with a layer of zinc oxide covering the surface. In both cases, a voltage across the device results in electron flow, reducing the current flow to protect against voltage surges.

VE24P00211K Application Field and Working Principle

VE24P00211K Varistor devices are designed for voltage transient protection in telecommunications, industrial, medical, appliance and consumer electronics applications. VE24P00211K is a Comprehensive Overvoltage Suppression Diode (COSD). It is a nonlinear, voltage-dependent device that provides a low impedance path for high energy pulses. It can provide protection for application circuits from high voltage force transients up to 450V.

When VE24P00211K is subjected to transient pulses that have higher amplitude than the breakdown voltage it will limit the voltage on the protected equipment to a safe level and clamp the voltage to ground. It has a low capacitance and is designed to clamp the peak of high energy transients. It works by clamping the sharp rising edge of surge and ESD types of voltage transients quickly and without consuming too much power.

The VE24P00211K is composed of two elements. The first element is a ceramic plate and the second is a metal pellet, allowing a current to pass when the voltage exceeds a certain level. The metal pellet is also connected to the ceramic plate via a conductive bypass gap. When a transient voltage is applied to the device, a low resistance path is created between the metal pellet and the ceramic plate. This current through the gap is then diverted through the device to ground, thus reducing the voltage at the protected circuit.

VE24P00211K can provide the following protection functions: Overvoltage Protection is a protection function that can prevent a device from being damaged by voltage not within the specified range of operation; Surge Protection prevents a device from being damaged by a sudden high voltage; ESD Protection prevents a device from being damaged by electrically generated static electricity; and Transient Protection protects a device from being damaged by high-voltage pulses.

Conclusion

VE24P00211K is a Nonlinear Varistor devices, which can provides surge and overvoltage protection for telecommunications, industrial, medical, appliance and consumer electronics applications. It has a low capacitance and is designed to clamp the peak of high energy transients quickly and without consuming too much power. It is able to limit the voltage to a safe level and clamp the voltage to ground. VE24P00211K is a great choice for protecting electronic devices from overvoltage, surge, ESD and transient occurrences.