3862C-162-103AL

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Rotary Potentiometers and Rheostats are electronics components used for different purposes within a circuit. One example is the 3862C-162-103AL, a rotary device typically used to control the resistance in a circuit. This article explains the application field and working principle of this component.

Applications

The 3862C-162-103AL is designed to be a variable resistor or rheostat, which decreases or increases resistance in a circuit. It is typically used in applications such as:

• Voltage dividers
• Controlling the output voltage from power supplies
• Controlling the speed of motor drives and rc helicopters/cars
• Potentiometer-based volume control

The 3862C-162-103AL is an adjustable device, which gives engineers and technicians the flexibility to make adjustments when necessary, while allowing the device to meet specific needs.

Working Principle

The 3862C-162-103AL employs a basic working principle that is similar to the ohmic resistance offered by a resistor, only that it is adjustable. The amount of power that can be applied to the device is determined by the adjustable knob, which can be turned clockwise or anticlockwise.

The 3862C-162-103AL consists of three terminals. The middle terminal is the common terminal, which is connected to both external terminals. The adjustable terminal, also known as the wiper, is connected to one of the external terminals. When the knob is turned, the wiper slides across the resistive element which is located inside the housing. This action increases or decreases the resistance depending on the direction that the knob is turned.

When the knob is turned, the resistance between the outer terminals also changes, resulting in a variation of the current flowing through the circuit. The variation is directly proportional to the position of the knob on the rotary device.

Conclusion

The 3862C-162-103AL is an adjustable rotary device that is typically used to control the resistance in a circuit. It utilizes a basic working principle that is the same as any resistor or rheostat. It can be used for voltage dividers, controlling motor speed, or even as a potentiometer-based volume control.

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