| Allicdata Part #: | 9401080000-ND |
| Manufacturer Part#: |
9401080000 |
| Price: | $ 0.00 |
| Product Category: | Circuit Protection |
| Manufacturer: | Weidmuller |
| Short Description: | VARISTOR CHASSIS |
| More Detail: | Varistor 2 Circuit Chassis Mount Module |
| DataSheet: |  9401080000 Datasheet/PDF |
| Quantity: | 1000 |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 1 +: | 0.00000 |
Specifications
| Series: | -- |
| Packaging: | Bulk |
| Lead Free Status / RoHS Status: | -- |
| Part Status: | Obsolete |
| Energy: | -- |
| Number of Circuits: | 2 |
| Operating Temperature: | -- |
| Mounting Type: | Chassis Mount |
| Package / Case: | Module |
Description
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TVS – Varistors, MOVs
TVS, or transient voltage suppressors, are some of the most important components in electrical engineering. They are used to protect the integrity of sensitive electronic components by dissipating voltage transients that could otherwise cause the component to fail. The two primary types of TVS components are Varistors and Metal Oxide Varistors (MOVs). Both of these devices work based on the same fundamental principle, but with different implementation and physical design.
TVS, or transient voltage suppressors, are some of the most important components in electrical engineering. They are used to protect the integrity of sensitive electronic components by dissipating voltage transients that could otherwise cause the component to fail. The two primary types of TVS components are Varistors and Metal Oxide Varistors (MOVs). Both of these devices work based on the same fundamental principle, but with different implementation and physical design.
Varistors
A varistor, often referred to as a voltage-dependent resistor (VDR), is a semiconductor device used for voltage stabilization, transient protection, and noise attenuation. The term varistor is derived from two words: varying resistor. These devices are essentially two-terminal electronic components that can reduce the voltage across a circuit in a non-linear manner. Varistors work by using a semiconductor junction to create a non-linear electrical property, whereby the current through the varistor is dependent on the voltage across the device. Under normal conditions, the resistance of the varistor is quite high, but when a preset voltage is applied, it changes to a much lower resistance value, allowing current to flow freely through the device. This enables the varistor to divert a sudden surge of current away from sensitive components, thereby protecting them from damage.Metal Oxide Varistors (MOVs)
A metal oxide varistor (MOV) is a different kind of voltage-dependent resistor. The device is built around a piece of sintered metal oxide, which is why it is also referred to as a sintered varistor. In addition to this, a MOV also contains several other layers of material, such as zinc oxide, in the form of a disk or a plate.MOVs work in a very similar manner to varistors. A MOV will remain in a high resistance state until the voltage across it exceeds a certain threshold. Once the voltage reaches or exceeds this threshold, the metal oxide grains in the device will change their shape, which causes them to form low-resistance pathways and render the device conductive. The device then acts as a short circuit and discharges the surge of current away from the circuit.The primary difference between varistors and MOVs is the way that they are constructed. Varistors are constructed from a single semiconductor material, while MOVs are made from a combination of metal oxide semiconductor materials.Applications
One of the most common applications for TVS components is their use in power supplies for computers and other electronic devices. These components are used to detect voltage transients and divert them away from the sensitive electronic components before they can cause too much damage. Varistors and MOVs can also be used for surge protection in telephone lines, automobile cable harnesses, and audio and video transmission systems.Conclusion
TVS components such as Varistors and MOVs are extremely valuable components for protecting sensitive electronics from voltage transients and surge protection. They work on the principle of changing their resistance value depending on the voltage applied to them, thus providing a shortcut that diverts the surge of current away from the circuit. These components are used in a variety of applications, from power protection in computers and phones to surge protection in automotive and audio systems.The specific data is subject to PDF, and the above content is for reference
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