RN55C1910DBSL

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Through Hole Resistors are components used in dozens of applications to monitor and control current in circuits. The RN55C1910DBSL is a Through Hole Resistor with an available resistance range of 1 – 19.1 kΩ that provide precise and stable current flow that won’t change over time. Plus, they offer a wide range of temperature ranges for applications requiring more robust operation. This resistor is also available in several package sizes, including DO-41, 1206, and 1210.

Applications

RN55C1910DBSL Through Hole Resistors are commonly used in military, aviation, industrial and commercial electronics, including circuit boards, power supplies, motor control, computers, audio amplifiers, power inversion, and energy metering. The device’s combination of power-handling and temperature performance makes it well suited for military and industrial applications where long-term operation is required. Its low temperature coefficient also makes it ideal for audio amplifier applications.

Advantages

The RN55C1910DBSL features several advantages. First, its built-in self-test circuitry ensures that all performance and reliability parameters are met. Second, its available resistance range is adjustable between 1 and 19.1 kΩ. This means that the device can be set to produce any desired current, making it highly versatile. Third, it features a Low Temperature Coefficient of +200ppm/°C, which is significantly lower than competing components. This helps to ensure long-term accuracy of the device over its operating temperature range. Finally, its small size makes it easy to integrate into tight spaces, making it an ideal choice for space-constrained designs.

Working Principle

RN55C1910DBSL Through Hole Resistors rely on the flow of electrons across a resistor element to achieve the desired resistance. This process is illustrated in the following diagram.

As shown, current flows from the positive terminal of the power supply, through the resistor element, to the negative terminal of the power supply. The resistance of the element is determined by its physical properties – such as its length, width, and resistance material. The combination of these properties results in a specific resistance rating, which can then be adjusted with the onboard trim potentiometer. This allows for precise control of current into the device.

In addition to controlling current, the device also helps to protect the circuit from harm caused by overvoltage or overcurrent. If the voltage or current exceeds the manufacturer’s specified limits, the device will create a diverting path for the excess current, protecting the sensitive components in the device. This safety feature helps to ensure reliable operation over time.

Conclusion

RN55C1910DBSL Through Hole Resistors provide precise and reliable current control, along with robust temperature performance and onboard protection against overvoltage and overcurrent. It is an ideal choice for military, aviation, industrial and commercial applications where long-term operation is required.

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