132B20202

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The Rotary Potentiometers, Rheostats, are widely used in various application fields from consumer electronics to industrial automation applications. Among them, 132B20202 type rotary potentiometer is a commonly used rotary device that finding extensive applications in low power operation.

A 132B20202 rotary potentiometer has two main electrodes, one to provide a variable signal output and the other to provide a current or voltage reference to the user. The resistive element in this type of rotary potentiometer is connected to a wiper which rotates on fixed end contacts as the knob is turned. Depending on the orientation of the knob, the signal output varies from minimum to maximum. The output signal level can be varied differently under various environmental conditions in order to obtain optimum performance.

The working principle of this rotary device is simple and it comprises a potentiometric circuit. Basically, the main power supply is connected to the main and wiper electrodes, and a reference voltage is supplied to the reference electrode. As the knob is moved, the wiper electrode is further insulated by the two main electrodes and the voltage drop across the resistive element increases with the rotation of the knob. This voltage drop across the resistive element is proportional to the knob’s angular position and is obtained as output.

The 132B20202 type rotary potentiometer is designed both for single and multiple turn operation, and it is often used in applications like adjustable fan speed, audio volume control, heating thermostat, etc. Its excellent resolution and linear response are the main features that make this device popular in inductive, digital, analog, and optical electronics as well as in industrial and computer control applications. Furthermore, this rotary device enables user to quickly set a desired rotary input signal level that is helpful in numerous applications, such as non-contact angular measurement, angle-to-position conversion and so on.

In conclusion, the 132B20202 rotary potentiometer is a very useful device for low power applications that posses a straightforward working principle and features excellent linearity and resolution. It has been widely used in many consumer electronic and industrial applications and is particularly helpful in applications related to rotary input signal levels. With its simple design, small footprint and excellent performance, this is the ideal choice for any low power application.

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