RHL25KE

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Rotary Potentiometers, Rheostats are a type of electronic component that can be used in a variety of applications and operates on different principles. The RHL25KE is one such component and its usage and working principle shall be discussed in this article.

A rotary potentiometer, rheostat is essentially a resistive device in the form of a three-terminal or two-terminal resistor with a sliding contact that when moved or rotated along its length produces a linear voltage output. Its properties make it an ideal component for achieving a variable electrical current, voltage, or resistance. The RHL25KE is a resistance potentiometer, constructed with a wirewound element in a 2-wire or 3-wire operation, using a single turn spindle. It is typically used for measuring AC and DC voltage, current and impedance and is available with standard resistance values ranging from as low as 0.25 ohms up to 25K ohms.

Like other potentiometers, its function is to operate as a voltage divider, creating a voltage drop across the resistive element using a wiper as the output device. The voltage is proportional to the position of the wiper with respect to the track and is adjustable from zero to the full input voltage, depending on the value of the resistor. This makes it an excellent choice for applications such as AC/DC motor control, switching power supplies, laptop or desktop computers, instrumentation, and many other applications.

The RHL25KE working principle is relatively simple and it operates on the principle of a voltage divider. When the knob on the potentiometer is rotated, it moves a slider contact along a resistive track between two end points, the terminals. As the slider moves along the track, it creates a voltage gradient across the resistive element between the two end points. The voltage drop across the resistive element is proportional to the position of the slider on the track. As the slider is moved further away from the end point with the lower voltage, the voltage across the resistor increases. Consequently, the voltage across the resistor is inversely proportional to the position of the wiper along the track.

The RHL25KE also features a simple insulation construction, a standard resistance tolerance of 10%, and a temperature coefficient of ±200 ppm/°C. It also features a long life expectancy of up to 10 million cycles and is available in a variety of sizes and shapes to fit the needs of various applications.

In conclusion, the RHL25KE is a rotary potentiometer, rheostat that is capable of providing variable electrical current, voltage and resistance. It operates on the principle of a voltage divider and is available in a variety of sizes and shapes to suit various applications. As a result, the RHL25KE is commonly found in a variety of applications and is becoming increasingly popular in the electronic industry.

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