ROV05-181K-S-2

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TVS - Varistors, MOVs Application Field and Working Principle

TVS (Transient Voltage Suppressors) or Varistors, MOVs are device designed to protect electrical equipment from lightning surges, electrostatic discharges and other high-voltage transients. MOVs (Metal Oxide Varistors) and other Varistors are specifically designed to respond rapidly to electrical transients and provide a high level of protection for connected equipment.

ROV05-181K-S-2 Varistor

ROV05-181K-S-2 Varistor is a highly efficient transient voltage suppression (TVS) diode designed to provide surge protection for electronic devices connected to AC or DC power circuits. This Varistor offers low capacitance and low let-through voltage, thus providing maximum protection against surges and other kinds of overvoltage transients.

Typically, ROV05-181K-S-2 Varistor is used in electronic equipment exposed to high voltage transients. It also serves as a very efficient protection device against lightning and other high voltage surges. ROV05-181K-S-2 Varistors are commonly used in consumer electronics, computing devices, networking hardware, and various types of industrial equipment.

What is the working principle of Varistors?

Varistors operate based on the physical phenomenon known as the “Hall effect”. Put simply, the Hall effect states that a voltage difference is generated across the terminals of a material when the material is placed in a magnetic field. When high voltages are applied to a Varistor, an electric field is generated across its terminals. As this electric field increases, the electrons present in the Varistor move from one terminal to the other, resulting in a flow of electric current. This flowing current helps to reduce the voltage across the terminals of the Varistor and thus protect the connected equipment from transients.

ROV05-181K-S-2 Varistors feature a wide voltage range and excellent surge handling capabilities. When subjected to viole ttransient, the device can withstand higher voltage and maintain an excellent clamping performance over a wide Vmax range.

The device is capable of handling up to 700V DC and up to 1400V AC/DC. In addition, the device can handle up to 90A peak current with high peak power dissipation due to its low on-state resistance. This Varistor also features built-in electrostatic discharge (ESD) protection, which makes it suitable for use in high voltage EMI environments.

The device features a highly effective thermally coupled construction allowing it to quickly dissipate heat to the PCB, thus providing it with superior efficiency and reliability. The device also has a low self-inductance and low capacitance, which results in superior performance when handling high frequency transients. The device also has a high ESD strike life rating, making it ideal for use in a variety of applications.

Conclusion

In conclusion, ROV05-181K-S-2 Varistor is a highly effective transient voltage suppression (TVS) diode designed to provide surge protection for electronic devices connected to AC or DC power circuits. The device features a wide voltage range and excellent surge handling capabilities, as well as built-in ESD protection and high peak power dissipation. The device also has a high ESD strike life rating, making it ideal for use in a variety of applications.

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