MFR-12FRF52-487K Resistors

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Through Hole Resistors are electronic components with a multitude of potential applications and uses. The MFR-12FRF52-487K, specifically, is a resistor designed primarily for high-power applications. Specifically, this resistor is designed to consistently deliver reliable performance even in the face of extreme climates and at higher temperatures.

The MFR-12FRF52-487K is a 12-watt resistor rated at a nominal 4700 ohms. Made with a thick film composition, its design features a composition of resistance ceramic and metal substrate layer along the 7 millimeter diameter body. This resistor also features tight tolerance and excellent temperature stability, providing superior performance and reliability in these environments. It is Rohs-compliant.

The primary purpose of the MFR-12FRF52-487K is to be used as a current limiting device in power supplies or as a voltage divider in conjunction with other resistors used in various circuit designs, such as a voltage/current limiter. As a power supply, the device could be used to limit the peak voltage applied to a load, ensuring that it can only be damaged in case of an overload. When used as a voltage divider, the device is useful in reducing the voltage applied to a given circuit.

Additionally, the MFR-12FRF52-487K can be used in applications where low dissipation and high insulation resistance are desired. It is ideal for high-side current limiting applications, such as motor and lighting control. It can also be used to provide a voltage signal for control of valves and actuators. A smooth start-up feature is possible for certain applications, allowing a gradual current limit to be set.

In terms of its working principle, the MFR-12FRF52-487K resists the flow of electrical current, either AC or DC, by providing an impedance to the flow in the form of a resistor. The resistor opposes the current by dissipating energy in the form of heat to maintain the limited amount of current passing through it. As the amount of power flowing through the resistor increases, the amount of heat dissipated by the resistor increases as well.

When the MFR-12FRF52-487K is utilized in conjunction with other resistors, the voltage and current are divided between the resistors. This is then regulated based on the individual properties of each resistor. For example, if two resistors are connected in series, the voltage will be divided between them according to their relative resistance values. Similarly, if two resistors are connected in parallel, the current will be divided between them according to their relative resistance values.

Overall, the MFR-12FRF52-487K is a versatile and high-performance resistor intended for use in a variety of applications. It is a reliable and stable resistor that is designed to provide consistent performance in extreme environmental conditions while providing a smooth start-up function where required. The device is capable of providing both voltage and current dividers in a variety of configurable configurations, while dissipating heat at high loads to maintain the current limit.

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