ROV14H820K-2

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TVS - Varistors, MOVs are used to protect a circuit against electrical surges. ROV14H820K-2 is an example of such type of device which is capable of protecting circuit from overvoltage transients.

ROV14H820K-2 is ceramic based devices having a built-in voltage Regulator and Transconductance Amplifier. It has a two-terminal thyristor-like structure with mainly two components; a zener diode and a resistor-capacitor (RC) network. During normal circuit operation, the anode of the diode is held positive and the cathode is clamped to a voltage level close to zero. This clamped voltage is proportional to the AC current, while the anode voltage remains unaffected. When an overcurrent transient occurs, the anode voltage rises and the cathode voltage decreases, allowing current to flow through the diode. The current then flows through the RC network, which is designed to convert an AC current waveform into a low impedance DC voltage.

The main application field of the ROV14H820K-2 is for protecting against overvoltage transients on sensitive equipment. This could include sensitive computer circuits, communications equipment, low-voltage electrical circuits, etc. There are also multiple other uses of ROV14H820K-2, such as protecting electronics from power surges, protecting against inrush currents, arc welding protection, protecting circuits from load dump transients, and providing protection against lighting transients and ESD.

The working principle of the ROV14H820K-2 is quite simple. When an overvoltage transient occurs, the device clamps the voltage across the two terminals, allowing a controlled current to flow which dissipates the excess energy and controls the voltage to a certain level. This helps to protect from any unwanted surge which may potentially damage the sensitive equipment connected to the circuit.

The main advantages of using ROV14H820K-2 for protection against overvoltage transients are its compact size, high efficiency, superior voltage holding, high surge capability, low power dissipation, and robust reliability. The device also has a high current carrying capacity, making it suitable for use on high current circuits.

In conclusion, ROV14H820K-2 is an excellent choice for protecting sensitive electronic devices from potentially damaging overvoltage transients. Its compact size, high efficiency, and superior voltage holding make it an ideal solution for protecting sensitive circuitry. Moreover, its high current carrying capacity makes it suitable for use on high current circuits.

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