72XR20KLFTB Potentiometers, Variable Resistors

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Trimmer Potentiometers, are basically adjustable resistors, used to control the current in a circuit. They can be used to adjust the voltage and allows for fine-tuning of the output of a circuit. The 72XR20KLFTB is one such trimmer potentiometer, and in this article, we will explore its application field and working principle.

The 72XR20KLFTB is a 5-pin trimmer potentiometer with a 7/8” square body and a unique adjustable element assembly. It has a resistance range between 1 ohm and 10,000 ohms and a temperature range between -40°C and +85°C. The 72XR20KLFTB is typically used in circuits where precise adjustment is needed, such as in voltage regulators, filtering circuits, and in audio products. It can also be used in combination with other components, such as multi-turn potentiometers or digital controls, to establish small portions of a signal, that would otherwise be difficult to produce.

The 72XR20KLFTB uses a single turn, metal-film potentiometer element made with a ceramic substrate and contact wipers. The wipers can be adjusted with a piece of metal or plastic box, which may be factory-set or adjustable when installed in the circuit. This simple design enables easy application and adjustment of the resistance in the desired circuit.

As far as the working principle is concerned, the 72XR20KLFTB consists of two terminals, a tap or wiper, and an adjustable resistive element. When a voltage is applied to both terminals of the wiper, it is able to adjust the resistance by adjusting the contact point between the wiper and the adjustable resistive element. As the contact point moves, the resistance is varied. This resistance change is then used to adjust the output of the circuit.

The 72XR20KLFTB is a very versatile trimmer potentiometer, able to be used in a wide range of applications. It is also easy to install and adjust, which makes it an ideal choice for many different circuits. In short, the 72XR20KLFTB is an excellent choice for applications in which precise adjustment of the output is needed, such as in audio products, voltage regulators, and filtering circuits.

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