ROV14H470K-S

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Varistors, also known as voltage-dependent resistors (VDRs), are electrical components composed of a semi-conductor material that works as an electronic voltage regulator. TVS (Transient Voltage Suppressors) are voltage-dependent devices used to protect electrical circuits from damage due to transients in the power line. MOVs (Metal Oxide Varistor) are voltage-dependent components that protect electrical circuits against overvoltage, power surges, and spikes. ROV14H470K-S is part of this family of components and is a low capacitance, high-surge, surface mount, bidirectional ESD protection diode.

ROV14H470K-S has a wide application field as it is used in the protection of high-speed signal lines with data rates up to 1Gbps and is particularly suitable for the protection of USB/I2C/I2S and eDP/DP ports. Furthermore, this series of components offers extensive protection from electrostatic discharge (ESD) and is ideal for use in vehicles, smartphones, and other applications requiring robust ESD protection.

ROV14H470K-S features excellent surge handling and low leakage current. It has 9pF of capacitance, which makes it the perfect balance between protecting from ESD events and preserving the signal integrity of high-speed data lines. They also offer ESD immunity up to 25kV HBM (Human Body Model) on both sides, making them excellent for use in two-wire bidirectional data transmission applications. With a peak power rating of 310WS (8/20μs waveform) and an operating temperature range of -55 to +125°C, the ROV14H470K-S series of components offers strong protection in the harshest environments.

The working principle of ROV14H470K-S lies in its metal-oxide construction. This construction enables the component to behave as a normal resistor until the voltage reaches a certain level, at which point the component begins to conduct. This concept is known as the “clamping” effect, as the conducting properties of the varistor can be used to “clamp” the voltage levels in order to restrict the voltage from going over a set value.

The ROV14H470K-S operates by clamping the voltage to a pre-set level when it reaches beyond its rated threshold. When this happens, current is allowed to flow through the device, protecting the sensitive electronic components from damage due to transient voltage surges. The fast response time and reliable protection of the device make it a popular choice for applications that require reliable ESD protection in harsh environments.

In short, ROV14H470K-S is one of the most reliable solutions for transient voltage suppression and ESD protection. It offers an excellent balance of performance and protection, with low capacitance, high surge, and a wide operating temperature range, all in a compact package.

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