ROV20-151K-S

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TVS (Transient Voltage Suppressors) are useful for suppressing fast and often high voltage transients in electrical and electronic circuits. These transients are caused by lightning, electrostatic discharge, switching arcs and inductive or capacitive transients, which can damage the electronic systems. TVS Varistors, MOVs (Metal Oxide Varistors) are usually semiconductor devices, and can effectively protect circuits from transient voltages and unexpected power fluctuations.

ROV20-151K-S is a typical TVS - Varistors, MOVs. It is a 20mm diameter, ESD Class 4.5 Varistor, featuring 12kA peak current capability in a snap-in disk plastic package. It is designed for use in overvoltage and ESD applications, providing outstanding protection for a variety of electronic components and systems in a wide operating temperature range.

Typical applications of ROV20-151K-S include protection for communications circuits, signal lines, power lines, low voltage power supplies, USB charging ports, consumer electronics, automotive electronics, eReader devices, and more. It can also be used in applications where a higher EMI / ESD rating is required, such as medical and aerospace.

ROV20-151K-S works in two steps: the Varistor first absorbs the transient voltage, then follows the current clamping process. The Varistor has a nonlinear resistance and quickly changes its resistance when exposed to an overvoltage, thus dissipating the energy and reducing the voltage. The current clamping process follows, where the Varistor continues to dissipate the energy and clamp the voltage level to a safe level. This clamped voltage is then held until the transient subsides and allows normal circuit operation to return.

ROV20-151K-S is considered a Rugged Varistor, meaning that it can withstand high voltage transients without becoming unstable or breaking down. It features excellent surge current handling and energy rating, with up to 12kA peak current capability and 20kA energy rating. Furthermore, the device operates over a wide temperature range of -55 to +125°C, ensuring reliable protection for a variety of environmental scenarios.

In conclusion, ROV20-151K-S is a rugged transient voltage suppressor designed for use in a wide variety of applications. It is optimized for protecting circuits from transient voltages, ESD, and unexpected power fluctuations, and features excellent surge current and energy rating capabilities. With a 12kA peak current capability and 20kA energy rating, the device is well-suited for a variety of environmental scenarios, and is an excellent solution for a wide range of overvoltage and ESD protection applications.

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