RNR55K2001FMRSL

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Through Hole Resistors have become ubiquitous components in electronic circuitry since they were first developed in the 1800s. The RNR55K2001FMRSL is a classic example of such a resistor, and has found a range of uses, from providing regulated loads in high-power radio receivers to precision voltage measurements. In this article, I will describe the application fields of this resistor, as well as its working principle.

Application fields

The RNR55K2001FMRSL is a two-watt precision resistor with an impedance of 55KOhms. Its NTC thermistor construction allows for excellent linearity and high temperature stability. This makes it suitable for a wide variety of applications, from signal sampling in high-frequency analog circuits to RF attenuation applications. Additionally, its tight tolerance of 5% makes it an ideal choice for applications that require extreme precision.

Another strength of the RNR55K2001FMRSL is its low profile. Its thin construction and small size make it suitable for use in space-critical applications. This also allows for complete integration of the component into the circuit board, freeing up valuable space. Furthermore, its high stability makes it an ideal choice for applications where minimal drift is required.

The RNR55K2001FMRSL is also capable of withstanding high-power surges and overvoltage conditions. As such, it is particularly suitable for use in high-power analog circuits, where its superior thermal and electrical performance can provide the necessary protection. Additionally, it can be used in high-temperature environments, allowing it to withstand harsh conditions.

Working principle

The RNR55K2001FMRSL is built with a two-terminal thermistor. This thermistor is made from a positive temperature-coefficient material, which means that its resistance decreases with increasing temperature. At the core of the thermistor is a ceramic material, which contains a small amount of lead that exerts a stabilizing effect. This, in combination with the fact that the thermistor is filled with a precision heat-resistant epoxy, ensures that it maintains an exact resistance over a wide temperature range.

When a voltage is applied to the resistor, the thermistor responds by increasing or decreasing its resistance. This change is dependent on the magnitude of the applied voltage. Additionally, the thermistor also responds to the temperature of the surrounding environment: as the temperature rises, its resistance will decrease, while as the temperature drops, its resistance will increase.

The RNR55K2001FMRSL can be used to provide linear regulation or current control. When used in linear regulation, the resistor behaves like a variable resistor, with its resistance increasing as the voltage is increased. Conversely, in current control mode, it behaves like a variable resistor, with its resistance decreasing as the voltage is increased. This allows the resistor to provide precise current regulation.

Conclusion

The RNR55K2001FMRSL is a two-watt precision resistor with an impedance of 55KOhms. Its NTC thermistor construction, combined with its small size and high tolerance, makes it suitable for a wide range of applications. It is particularly useful in high-power analog circuits, where its superior thermal and electrical performance can provide the necessary protection. Additionally, its tight tolerance makes it an ideal choice when precision is needed.The specific data is subject to PDF, and the above content is for reference