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TVS - Varistors, MOVs

Transient Voltage Suppressors (TVSs) are a type of electrical protection device used to protect sensitive components and systems from voltage transients or surges. TVSs are commonly used in the automotive, industrial, and consumer electronics industries, and are available in various configurations (e.g., voltage operated, current operated, unidirectional, bidirectional, etc.) and ratings. The main two categories of TVSs are varistors (also called Metal Oxide Varistors or MOVs) and Zener Diodes.

ERZ-E07E471 Application Field and Working Principle

The ERZ-E07E471 is a bidirectional TVS diode designed for board protection and to provide surge suppression. This TVS is unidirectional and has a breakdown voltage of 7V and a maximum clamping voltage of 16V. The device is designed to clamp transient voltages and offer reverse and overvoltage protection. The device’s maximum peak current is limited to 4A, and its effective capacitance is less than 350pF at 1MHz. The active area to external grounding provides superior clamping performance.

When a transient voltage exceeds the breakdown voltage, the device quickly clamps the voltage to the clamping voltage. This provides current limiting and voltage suppression to protect against voltage spikes or transients. The device is able to absorb hundreds of strikes from transients as it is a non-destructible protection technology.

The ERZ-E07E471 device is ideal for various automotive, consumer and industrial applications. It is designed to protect against voltage transients or spikes and is suitable for applications such as DC-DC converters, Power Supplies, Electrical Outlets, Telecommunication Lines, and Automotive Electrical Systems. It can also be used as an addition to existing protection circuits, providing additional protection against voltage spikes.

The ERZ-E07E471 device offers protection from overvoltages and transients with superior clamping capability, and is designed to be low in capacitance for the higher switching frequencies used in today’s electronic products. The device is designed to offer multiple protection functions – reverse voltage protection, overvoltage protection, transients protection – all in one small package. This makes it an ideal choice for protecting sensitive circuitry from damage caused by voltage spikes or transients.

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