VRS0402SR180030N Circuit Protection

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TVS - Varistors, MOVs are used for transient protection. The main purpose of this type of protection is to protect system components from transient voltage surges that may potentially damage the components. VRS0402SR180030N is an example of such transient voltage suppressors. It uses a combination of metal oxide varistors (MOVs) and protective diodes to provide high-energy protection.

Application Field

VRS0402SR180030N can be used in various application fields. It is suitable for power system, communications network, consumer electronics and other electronic circuits that undergo significant interference. It can protect against a variety of voltage transients, including those resulting from cable or antenna strikes, induced lightning, static discharge and electrostatic discharge. The device can also be used in applications requiring ESD/surge protection and high frequency suppression.

Working Principle

The VRS0402SR180030N utilizes two components, a metal oxide varistor and a protective diode, to provide protection against transient voltage surges. The protective diode acts as a clamp to divert any surge or spiking on the supply into a ground plane. The metal oxide varistor (MOV) component works to absorb any remaining energy from the spike or surge, effectively dissipating it.

The metal oxide varistor works by increasing its resistance with the amount of voltage applied across its terminals. When an overvoltage is applied, the resistance of the varistor increases in a non-linear manner, thereby diverting the energy from the overvoltage and dissipating it in the form of heat. In addition, the protective diode provides an open-circuit path for the excess current to flow, thereby preventing further damage.

Conclusion

The VRS0402SR180030N is a transient voltage suppressor that can be used in various applications. It consists of a metal oxide varistor and a protective diode which are both key components in providing protection against transient voltage surges. The metal oxide varistor increases its resistance with the amount of voltage applied and the diode provides an open-circuit path for excess current to flow, thereby providing protection for the system components from damage due to transient voltage surges.

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