VDRS20W460BSE

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TVS – Varistors, MOVs

The VDRS20W460BSE is a type of Transient Voltage Suppressor (TVS), a term for a variety of devices designed to protect sensitive electronic components from the effects of high levels of electrical stress. These protectors come in a variety of shapes and sizes, but all work by suppressing electrical transients – sudden, significant increases or decreases in voltage that can cause destructive energy levels within the device or circuit.

Specifically, the VDRS20W460BSE is a product series of Voltarc\'s Varistor Voltage Suppression (VVS) devices. Varistors are components that are designed to detect and clamp excessive voltage levels before they compromise the normal operation of a device. This series of varistors has a rated voltage of 460V and a surge rating of 20W.

Application Field

The VDRS20W460BSE is well suited for use in a number of industrial and consumer applications where hazardous voltage transients must be quickly detected and clamped. Common industrial applications include surge suppressors, lightning transient protection, and electric grid transient protection. Consumer applications include personal computers, external hard drives, automobiles, motorcycles, and anywhere else high transient voltages can appear.

Working Principle

When a dangerous voltage transient occurs, the varistor will detect the change and quickly respond to reduce the hazardous voltage level. This type of varistor contains a semi-conducting Zinc Oxide (ZnO) core that is able to detect and absorb excessive voltages. The resistance of the varistor is determined by the voltage across its terminals, and when that voltage becomes excessive the resistance of the device rapidly reduces and helps absorb enormous amounts of energy. This energy is diverted to ground, allowing it to safely bypass the sensitive devices it is protecting.

In addition to providing voltage protection, the VDRS20W460BSE varistor also has a wide temperature range (-40°C to 85°C) and high energy density, making it especially well-suited for applications in which high temperatures and compact designs must be considered.

By providing both protection and space-saving designs, the VDRS20W460BSE is an ideal solution for applications requiring fast reaction to voltage transients. Its unparalleled performance and reliability make it a wise choice for both industrial and consumer applications alike.

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