RWR81S2490FRS70

Through hole resistors are components commonly used in electrical and electronics circuits. With a wide range of rated power and resistance values, they are used in a variety of applications. One specific through hole resistor is RWR81S2490FRS70. This resistor comprises of both a wirewound element, and a ceramic body.

Application Field

RWR81S2490FRS70 provides high power ratings and precision resistances that allows for its use both on the component level and the system level. For example, RWR81S2490FRS70 can be used at the component level for measuring variable resistors in high precision applications such as instrumentation. On the other hand, RWR81S2490FRS70 can also be used in general system level applications, such as impedance matching, impedance bridging, attenuation control, and more. Additionally, its wide temperature range allows for robust and reliable performance in extreme temperatures.

Working Principle

RWR81S2490FRS70 works by utilizing its ceramic body and wirewound element. The ceramic body provides robust mechanical support and insulation. It also provides an excellent thermal conduction path, allowing for more uniform temperature distribution of the entire component. The wirewound element provides the desired electrical resistance by forming a physical loop between two points in the circuit.

When a current is passed through the component, the resistor element heats up and dissipates the energy as heat. The magnitude of the current and corresponding temperature are influenced by the resistance of the component. The ceramic body of the component encapsulates the wire element, preventing heat from affecting other parts.

As such, RWR81S2490FRS70 offers high reliability, repeatability, and precision in various electrical and electronics applications. As a through hole resistor, its advantage is in its capability of supporting both high-powered applications and precision measurements.