ROV14H181K-S

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TVS (Transient Voltage Suppression) Varistors, MOVs (Metal Oxide Varistors) and ROV14H181K-S are passive devices which respond to function as a clamp. They are typically used to protect circuits from voltage transients caused by electromechanical spikes, lightning, and other forms of high energy discharge. MOVs are usually more robust when it comes to repeated applications of overvoltage, but their trade-off often means they take up more space.

ROV14H181K-S stands for Radial Lead Varistor, and they are designed to protect sensitive components from various transient surges. These transients include lightning, EMF, and ESD. This particular model offers 18 volts DC and 14 volts AC, with a peak pulse current of 181mA. It has an insulated polyester casing on the outside, and the leads are the standard .187” diameter. ROV14H181K-S components have a dielectric strength of 150 volts and a temperature of -55 C to 125 C. In terms of size, this Varistor has a diameter of 14mm and a height of 5mm.

The application field of the ROV14H181K-S varistor is very vast. Its compact size and reliable performance make it ideal for a variety of applications, from consumer electronics to automotive applications. These components are also suitable for use in lighting and security systems, where overvoltages are common. Because of its small size and high pulse current handling capacity, the ROV14H181K-S is a good choice for use in power supplies, UPS systems, and industrial control systems where high transient voltages are expected to occur.

The working principle of the ROV14H181K-S is simple yet effective. This transient voltage suppressor is a nonlinear, resistive capacitor that absorbs transients over a certain voltage and a defined time interval. This is achieved by introducing a resistive element or varistor to absorb the energy of the transient. The varistor has two terminals, a positive and a negative, and a predetermined threshold voltage. In the ROV14H181K-S varistor, this threshold voltage is 18 volts. When the applied a voltage exceeds the threshold, the varistor will be activated and act as a low-impedance bridge, clamping the voltage and diverting the excess current to ground. The surge current can be as high as 181mA and will be diverted to the ground safely. This reduces the voltage effectively and helps protect any connected components from damage.

In conclusion, the ROV14H181K-S Varistor is a robust, efficient and effective solution for transient voltage suppression. Its small size makes it well suited for a variety of applications, and the wide range of thresholds make it suitable for various conditions. The working principle is simple yet effective, providing protection against damaging transients. This transient voltage suppressor is designed to absorb transients over a certain voltage and a defined time interval, and is a good solution for protecting sensitive components from voltage transients caused by lightning, ESD, and other high energy discharges.

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