P231-QC20BR10K

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--

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Rotary Potentiometers

A rotary potentiometer, otherwise known as a rotary pot, is a three-terminal device that is used to regulate the flow of electricity within a circuit. The device is composed of a central spindle and three electrical terminals. The two terminals on either side of the spindle are typically designated a "common" terminal and are connected to the circuit. The third terminal, known as the wiper, is connected to the spindle and is connected to varying resistances depending on the angular position of the spindle.The electrical resistance is adjusted by rotating the spindle. As the resistance of the device is adjusted, the electrical current is modified and subsequently, the output voltage is regulated. Potentiometers are often used to adjust the volume of an audio signal or the brightness of a light.

Rheostats

Rheostats, also known as variable resistors, are composed of a single resistor that is wound into a coil. The resistor is connected to two terminals—the end indicating the two extremities of the resistance scale.In contrast to rotary potentiometers, the resistance of a rheostat is adjusted by sliding the contact along the resistor\'s coil. This changes the amount of resistance between the two terminals. Rheostats are most commonly used to control the speed and torque of motors and to adjust the brightness of lamps in dimmer switches.

P231-QC20BR10K Application Field and Working Principle

The P231-QC20BR10K is a rotary potentiometer manufactured by Japanese manufacturer Nihon. This rotary pot is designed to have a range of resistance values ranging from 0 to 10K Ohms with a standard electrical tolerance of ±10%. The device is composed of a central spindle and three terminals. The P231-QC20BR10K is typically used in electronics applications such as audio applications, like the volume control of a TV or radio, and industrial applications, like motor speed controllers.The working principle of the P231-QC20BR10K can be explained with the use of a simple ohmmeter. When an ohmmeter is connected across the terminals, the current flowing between the two will be adjusted depending on the resistance level. As the spindle is turned, its contact increases or decreases the resistance between the two terminals, resulting in a change in the flow of current. The resistance adjustment can be used to regulate the voltage and current of a circuit, and thus, can be used to control the speed and torque of a motor or the brightness of lamps in a dimmer switch.

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