ROV20-201K-S-2

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TVS (transient voltage suppressor) devices, such as MOVs (metal oxide varistors) and varistors, are important components for protecting sensitive electronic equipment and circuitry from high voltage and transient electrical spikes. The ROV20-201K-S-2 is a varistor from Littlefuse which is designed for use in high voltage applications that require protection against surges and spikes. This article will explore the application fields and working principle of the ROV20-201K-S-2 varistor.

The ROV20-201K-S-2 is a high-performance varistor that is designed to protect sensitive electronic components from fast-changing overvoltage events and transients. It is a 200VAC varistor with a maximum peak current rating of 10kA, making it suitable for use in a wide range of applications. The varistor has an operating temperature range of -55°C to 85°C, a surge current rating of 120A (8/20µs) and a low capacitance of 0.55pF (8/20µs). The device is also UL recognized and meets all the requirements of CSA, EN, IEC and VDE.

The ROV20-201K-S-2 varistor is widely used in a variety of applications. It is commonly used for surge protection in air conditioners, dishwashers, washing machines, lighting systems, motors and power supplies, as well as other residential and commercial equipment. The varistor is ideal for applications that require an increased protection level against overvoltage due to its high surge current rating and high voltage breakdown ratings. Additionally, the device can be used to protect against electrical transients in automotive, industrial and medical equipment, and can also be used as an EMI filter in aerospace and defense applications.

The principle of operation of a varistor is simple and straightforward. A varistor is essentially a semiconductor device with two electrodes; one is a positive electrode and the other a negative electrode. When a voltage is applied across the varistor, it acts as a variable resistor, and the value of the resistance is determined by the voltage and current applied across the varistor. The greater the applied voltage, the lower the resistance of the varistor. This enables the varistor to act as an overvoltage protection device, clamping the applied voltage before it can reach a level that can damage sensitive electronic components.

The ROV20-201K-S-2 varistor is designed for use in high voltage applications where protection from surges and spikes is required. The device is constructed with a silicon carbide ceramic element and offers excellent high voltage withstand capability, high surge current rating and a low reverse leakage current. The varistor also features a wide operating temperature range and is UL recognized, ensuring reliable performance even in the harshest of environments. With its high peak current rating, UL recognition and excellent high voltage withstand capability, the ROV20-201K-S-2 is an ideal solution for applications requiring protection from transient electrical spikes and surges.

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