ROV20E241K

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TVS (transient voltage suppressor) Varistors, MOVs, or other device types are often used in circuit protection applications, such as when protecting against surges or transients. In this article, we will look at the ROV20E241K, and discuss its application field and working principle.

The Diomed ROV20E241K is a type 2 clamping device that is widely used for surge protection. It is categorized as a stand-alone varistor, which means it does not require extra components for mounting. The ROV20E241K features a robust moving element that is designed to offer superior clamping and to provide excellent protection to circuits and components from transients and surges.

The ROV20E241K has a clamping voltage of 20V, and the peak surge energy is rated at 1.5kA (kilo-Amps). This means it can handle large surge currents, up to 15 times greater than the typical transient voltage. With the high-performance capabilities and low voltage drop, the ROV20E241K is optimized to protect sensitive circuits and components.

The ROV20E241K is mainly used in applications where low voltage drop is essential. These include telecommunications, medical devices, power management, industrial automation, consumer electronics, lighting fixtures, and automotive systems. Due to its low voltage ratings, the ROV20E241K is especially suitable for consumer electronics and home appliances that need to operate at low voltage levels.

Now let’s look at how the ROV20E241K works. Its components are designed to redirect any incoming transient voltage to ground, providing protection against surges and transients. When an overvoltage condition is present, the ROV20E241K’s “moving element” will instantaneously conduct a surge current to the ground. This repelling motion produces a rapid but controlled energy dissipation, which safely dissipates without damaging the sensitive components.

The ROV20E241K is also designed to include other features that augment its performance. Its DC leakage current is low, which helps reduce power consumption. It also contains an auto-reset function – when the transient has been dissipated and the overvoltage condition has cleared, the device will reset itself and return to its normal, quasi-stable resistance state. The ROV20E241K also contains an internal thermal fuse to prevent the device from overheating or becoming overstressed due to excessive current.

In conclusion, the Diomed ROV20E241K is an ideal solution for providing reliable surge protection and low voltage drop in sensitive circuits and components. Its robust design features are designed to provide superior transient protection and long-term reliability, making it suitable for a wide range of applications.

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