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Trimmer Potentiometers

The 3314R-2-502E is a trimmer potentiometer. Trimmer potentiometers, also known as trimmer pots, are small, adjustable resistors known as variable resistors. They are usually used for precision adjustments in electronic circuits, and their will typically measure resistance values between 0-50 micro-ohms.

Application Field

Trimmer potentiometers are commonly used to adjust settings in amplifiers, light dimmers, and in the tuning of radio sets. Additionally, they have also been used to adjust the brightness of electronic signs and displays. Trimmer potentiometers are also popularly used for manual adjustments on industrial electronics, such as in information display panels and sensor systems.

Working Principle

Trimmer potentiometers are composed of three main parts: a resistance element, a spindle mechanism, and a housing (potentiometer). The resistance element is the semiconductor that is made up from resistors that are connected in series. The spindle mechanism connects the resistance element to the housing, allowing it to be adjusted with a screwdriver or similar tool. The housing protects the components and provides support for the spindle mechanism.

To adjust the trimmer potentiometer, the spindle is turned a certain number of rotations. This adjustment alters the resistive values in the resistance element, thereby regulatory the voltage or current that is supplied by the trimmer potentiometer.

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