ROV05H390K-2

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Varistors, also known as voltage-dependent resistors (VDRs), are nonlinear electrical components that exhibit a significant variation of resistivity with voltage. They’re composed of two or more semiconductor materials with different dopants. When a voltage is applied, the dopants generate an electric field that causes a decrease in resistance.

A metal-oxide varistor (MOV) is a type of varistor that includes a metal oxide and a semiconductor layer. It’s the most commonly used type of varistor and is used for overvoltage protection, high-voltage power supplies, and power line protection.

The ROV05H390K-2 is an MOV designed to protect circuits against overvoltage and transients. It has a breakdown voltage of 390V (MOV05H390K-2) and is typically used in applications such as power line protection, overvoltage switching, and power yupply protection. It can also be used in DC-DC converters to protect them from transients.

The ROV05H390K-2 works by limiting the voltage across the MOV to the specified maximum level. When a voltage higher than the rated voltage is applied to the MOV, the MOV will start to conduct. This causes the voltage to drop across the MOV, thus limiting the voltage to the specified level.

The ROV05H390K-2 also has a fast-response time (<100ns) so it can quickly respond to rapid changes in voltage. This makes it well-suited for use in applications such as power line protection and overvoltage switching. It also has a low dynamic resistance which makes it ideal for use in DC-DC converters.

In addition to its fast-response time and low dynamic resistance, the ROV05H390K-2 has another key advantage: it can handle high peak current levels (up to 375A). This makes it well-suited for use in applications where the power supply needs to handle large pulses of current.

The ROV05H390K-2 is an ideal choice for applications that require overvoltage protection, high-voltage power supplies, and power line protection. It’s also well-suited for use in DC-DC converters where it can handle high peak current levels and provide fast response times. With its rugged construction and wide temperature range, the ROV05H390K-2 is a reliable and cost-effective choice for high-power applications.

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