6673R2KL.25

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Rotary Potentiometers, Rheostats

The 6673R2KL.25 is one of a range of rotary potentiometers, also known as rheostats, which are used in a wide variety of applications. Potentiometers allow for the setting of electrical potential difference between two points, often in the form of a voltage divider. Rheostats, meanwhile, provide a resistive element for adjusting the flow of current through a circuit.

A rotary potentiometer is made up of a circular track, akin to a wheel cut into grooves, which is divided into a number of equal parts. A wiper is then mounted on the shaft, with contacts on the wiper in contact with the slotted deck. As the shaft rotates, the contacts move along the track, altering the resistance of the potentiometer and allowing for precise adjustment. These are available in single or dual sections, often featuring an electronically switched option, where a ‘return’ action is needed.

The 6673R2KL.25 is a ‘multi-gang’ design, meaning it uses a combination of different sections. It is made up of four slotted decks, each with their own wiper position. The effective track size is 25mm in diameter, with a maximum resistance of 100kOhms. The resistance and current capacity are adjustable, allowing for precision control when coupled with electronic circuits or equipment.

In terms of applications, rotary potentiometers and rheostats can be used to adjust current or voltage in a circuit for a variety of purposes. These can include volume control in audio systems, pulse width modulation, voltage regulation and temperature control in automation systems, among many others. The potential feedback in such systems makes use of the 6673R2KL.25’s accurate and repeatable wiper positioning.

Potentiometers can also be used in communication systems as an electronic attenuator, by scaling the output signal of one device to the acceptable levels of the next device in the chain. In this form, the 6673R2KL.25 can be used to accurately adjust the voltage delivered, based on the position of the wiper on the track. By using multiple sections in series or in parallel, multiple parameters can be adjusted simultaneously.

Regardless of the application, the working principle remains the same. As the potentiometer’s wiper moves along the track, resistance can be finely adjusted and the voltage or current of the circuit can be regulated. The small size of the unit makes it ideal for use in tight spaces or on compact electronics systems. Coupled with its accuracy, the 6673R2KL.25 is an excellent choice for a wide range of voltage control and resistive applications.

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