0071.1211.A2

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TVS (Transient-Voltage Suppressors), Varistors, and MOVs (Metal Oxide Varistors) are all used to suppress transient voltages. Such transients can cause damage to electrical devices due to their burst of energy.TVS devices are designed to absorb the transient energy by clamping the voltage to levels that will not cause damage. TVS devices have little to no effect on DC voltages and currents, allowing them to be used in both AC and DC applications.Varistors are similar to TVS devices, but they are designed to handle higher voltage transients. Varistors are made from components such as zinc oxide, silicon carbide, or carbon that have a wide voltage range of operation. The voltage at which the varistor will start to dissipate energy is known as the clamp voltage.Metal Oxide Varistors (MOV\'s) are specifically designed to handle large transient voltages. The main benefit of MOVs is their capacity to absorb much higher voltages than other types of voltage suppressors. MOVs are made from layers of metal oxide that are heated and compressed to form the varistor.These three types of voltage suppressors, TVS, Varistors, and MOVs, all have their own unique applications and design considerations. The 0071.1211.A2 application field and working principle is designed to protect electronic devices against transients in AC and DC applications. It contains a dedicated bias network for high fault current protection. Additionally, an “over voltage clamp” feature is incorporated to ensure that excess voltage is clamped to a predefined level. The device also features an “air gap field” which ensures excellent thermal cycling capabilities.

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