72PR25KTB

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Trimmer Potentiometers

Trimmer potentiometers, also known as trim pots, are adjustable potentiometers that are usually mounted to a PCB (Printed Circuit Board). They are designed to adjust the output voltage of a circuit by varying the resistance that the potentiometer presents to a circuit. Trimmer potentiometers differ from adjustable potentiometers in that they are not designed for use as a user interface, but rather are for adjusting a circuit that is generally not accessible.

72PR25KTB Application Field and Working Principle

The 72PR25KTB is a trimmer potentiometer that is primarily used for applications such as linear control of potentiometers, rheostats, and circuit balancing. The 72PR25KTB is a multi-turn trimmer potentiometer, meaning it has multiple turns of the control knob before reaching the full resistance. This allows for very precise adjustment and greater control over the output voltage of a circuit. The 72PR25KTB has a maximum resistance of 25K ohms and a power rating of 0.5W at 70°C.

The 72PR25KTB operates using a principle called “wiper resistance”. When the control knob is turned, a variable resistor (called a wiper) is moved along the length of the potentiometer. As the wiper is moved, it presents different resistances to the circuit. This in turn changes the output voltage from the circuit. The 72PR25KTB is designed so that as the wiper is moved, the resistance it presents will increase linearly with the number of turns of the control knob.

Conclusion

The 72PR25KTB trimmer potentiometer is a versatile and powerful tool for controlling the output voltage of a circuit. It is designed for applications such as linear potentiometers, rheostats, and circuit balancing. By using the principle of wiper resistance, the 72PR25KTB is able to precisely adjust the output voltage of a circuit by varying the resistance that it presents to the circuit.

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