RNX0381K00FKR6

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Introduction to Through Hole Resistors

Through hole resistors are one of the most common yet often underestimated components found in a circuit. They help to manage the electrical current in circuit and play an integral role in the viability of a circuit. Manufacturers have produced many variety of these established components, from the universal metal oxide resistor to complex specialty resistors. A through-hole resistor, also known as an axial resistor, is composed of two endcaps connected together by a cylindrical resistive element.

Examples of through-hole resistors include the RNX0381K00FKR6, a thick-film resistor manufactured by Renesas. This specific component is used for applications that involve both low and high leakage currents. When exposed to high temperatures, it can provide the necessary insulation resistance and dielectric strength for reliable operation.

RNX0381K00FKR6 Application Field and Working Principle

The RNX0381K00FKR6 is a specially-designed thick-film resistor built with a ceramic substrate and a NiCr metal layer. This metal layer determines the electrical resistance value of the resistor, as well as its temperature characteristics. This type of thick-film resistor is commonly found in electrical circuits which require specific voltage levels and low electrical time constants. It is also suitable for AC filtering applications, such as in professional audio equipment.

The RNX0381K00FKR6 works on the basis of electrical resistance. This resistance is determined by the material used to construct the resistor, which is usually a ceramic substrate with a metallized layer of NiCr. The contact area between the two layers determines the amount of resistance developed. The substrate material determines the required wattage rating of the resistor, and directly affects the physical size of the resistor.

The substrate material is also responsible for the temperature coefficient of the resistor, and is designed with a certain resistance tolerance which is determined by the manufacturer. In some cases, the resistors can be designed to have higher power ratings, but the physical size of the resistor will also increase accordingly.

Conclusion

In conclusion, the RNX0381K00FKR6 is a thick-film resistor designed for applications involving high and low leakage currents. It is constructed from a ceramic substrate with a metallized layer of NiCr, and its temperature coefficient and resistance tolerance are determined by the manufacturer. This type of through-hole resistor is commonly used for AC filtering applications and electrical circuits with specific voltage levels.

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