RWR71S4871FRRSL Resistors

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Through Hole Resistors are resistors that, as the name implies, are mounted through a hole in printed circuit boards. They come in many different shapes and sizes, but the most common type used today is the RWR71S4871FRRSL (also known as a thick-film resistor).

This resistor consists of tin-plated copper leads with a glass-encapsulated housing, made from alumina (Al₂O₃). A conducting ceramic paste has been applied to the top and sides of the resistor, onto which the resistance value is printed. The resistor is baked in an oven, causing the paste to crystallize and form a solid, resistive layer.

This type of resistor is used in a multitude of applications, but is most commonly employed in high power applications such as power supplies, electric vehicles, and specialised industrial electronics. It is also useful for power line communication or radiofrequency applications.

The RWR71S4871FRRSL offers various ranges of resistance values, including 0.1 - 10Ω, 1 - 100Ω, 10 - 1KΩ, 100KΩ - 1MΩ, and 4.7KΩ - 10MΩ. It is rated to dissipate up to 2000W of power and has very low temperature coefficients. It also has high current handling capabilities and is RoHS compliant.

The working principle of the RWR71S4871FRRSL is based on the movement of electrons. This resistor works by restricting the flow of electrons, by exploiting the fact that electrons move more slowly through a material with resistance than through a material without resistance. As electricity passes through this resistor, electrons collide with the material\'s atoms and are eventually blocked. This creates a voltage drop, which is essentially the resistance that is measured in ohms.

The resistor is also designed to dissipate the heat generated by the current flowing through it. Therefore, when selecting a resistor, it is important to keep in mind the power dissipation rating of the component, as it will vary depending on the application.

In conclusion, the RWR71S4871FRRSL is a type of through hole resistor that is predominantly used in high power applications. It has excellent current distribution capabilities and low temperature coefficients. Furthermore, it can dissipate up to 2000W, and its working principle is based on the restriction of electron flow.

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