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Rotary Potentiometers

PDB181-GTR01-254A2 is a rotary potentiometer, also known as a “rotary voltage divider”. It is a three-terminal passive electronic component, whose resistance varies depending on the angular position of a contact. It is used to adjust the resistance in an electric circuit. The device consists of a resistive element that is mechanically connected to a rotating shaft or knob, whose position determines the amount of resistance in the circuit. The resistance of the potentiometer is variable from 0 to the total resistance of the device.

Working Principle

The working principle of the PDB181-GTR01-254A2 is based on the fact that when a voltage is applied to the first and second terminal, a current flows through the device. The current is proportional to the ratio between the position of the contact and the total resistance of the device. To adjust the resistance in a circuit, the position of the contact is changed by rotating the knob, thus changing the ratio.

Application Field

PDB181-GTR01-254A2 is used in a variety of applications, such as volume controls, lighting dimmers, audio amplifiers, and DC motor speed controllers. It is used to adjust current or voltage in a circuit. It is the most common type of variable resistor used in electronic circuits.

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