Potentiometers and Knobs
A potentiometer is a manually adjustable electrical resistor, equivalent to a variable resistive voltage divider. It can be single-turn — for quick, intuitive adjustments — or multi-turn,where the shaft makes several full rotations to cover the entire adjustment range, ensuring much higher precision.
In both cases, the choice of construction technology—carbon, cermet, conductive plastic, or wirewound—determines the precision, long-term stability, and resistance to the plant's environmental conditions.
We distribute three world-leading brands, each with specific characteristics for different application fields.
The Brands We Distribute
Vishay (Spectrol – Sfernice)
A world leader in passive electronics, Vishay has acquired the historic Spectrol and Sfernice brands, bringing a complete range of single- and multi-turn potentiometers into a single catalog. Advanced design technology allows for the incorporation of additional components—such as connectors and cables—directly into the component, simplifying assembly in equipment.
Bourns
Synonymous with accuracy and high reliability worldwide, Bourns complements its classic lines of single- and multi-turn potentiometers with more specialized solutions: slide potentiometers and linear motion potentiometers for applications where control is translational rather than rotary. Each product is the result of a rigorous internal development process that ensures global availability and consistent quality.
AB Elektronik (TT Electronics)
A brand owned by the British group TT Electronics, AB Elektronik offers intelligent solutions for demanding industrial applications. The available range covers carbon, cermet, conductive plastic, wirewound, and heavy-duty wirewound potentiometers—ideal for harsh environments where mechanical robustness is just as high a priority as electrical precision.
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