7284R50KL.25

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Rotary Potentiometers

A rotary potentiometer is a type of mechanical transducer that is used to convert the angular position of a rotating device or wheel into analog or digital signals. The output signal can be assumed to be linearly proportional to the angle of rotation. They are widely used in the field of motion control, robotics, automotive, home appliance, and other applications.

The 7284R50KL.25 rotary potentiometer features a 2.54mm 5-way mounting hole size, top or side actuation, 2W max power, free rotation angle 0, 5% resistance tolerance, and an off-state leakage current of 5uA max.

The working principle of the 7284R50KL.25 rotary potentiometer is that a resistor network is formed by the adjustment of the wafer, and the resistance between the two ends of the voltage divider is changed along with the direction of rotation. A voltage divider circuit is formed between the two ends of the potentiometer, and the output voltage of the voltage divider circuit can be used to represent the angular displacement position of the shaft. Therefore, the rotary potentiometer can be used to measure the displacement or angular position of the rotation shaft.

Rheostats

A rheostat is a type of variable resistor that is used to control the voltage or current in a circuit. It consists of two terminals, a resistive element, and a rotating contact called a rotor or wiper that moves along the surface of the resistive element to vary the amount of resistance in the circuit. Rheostats are widely used in power supplies, audio amplifiers, gauges, electric motor controllers, and other applications.

The 7284R50KL.25 rheostat features a 1/4W rating, single-turn of 75Ω minimum resistance, 0.2A max current, and an operating function temperature range of -55 to +125°C.

The working principle of the 7284R50KL.25 rheostat is that it is composed of a fixed resistor and a brush. The amount of impedance in the circuit is determined by the relative position between the resistor and the brush. When the position of the brush moves along the resistor, the impedance of the circuit will change and affect the current in the circuit. The brush can control the current in the circuit by changing the impedance depending on the position.

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