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Precision Potentiometers

For over 50 years, Exxelia has been a trusted leader in the development of high-precision potentiometers, specifically designed for aerospace, space and military applications. These potentiometers, available in rotary and linear configurations, deliver exceptional accuracy with linearity up to <0.01%

Exxelia also offers custom potentiometers to respond to all mechanical, thermal, and environmental demands, ensuring they perform in the most extreme conditions including under vacuum.


Exxelia’s potentiometers are widely used in space applications such as satellites (solar array drive mechanisms, pointing systems), space exploration rovers, and critical space instruments. With our expertise in space-qualified potentiometers, we provide tailored solutions that meet the rigorous standards of the space industry. Our potentiometers come in all sizes, from miniature to large-scale, with RoHS-compliant options. Exxelia’s custom designs and bearingless sensor solutions are ideal for space missions where reliability and precision are paramount.


With decades of experience in high reliability potentiometers (including space-grade potentiomètres), Exxelia is the go-to partner for aerospace companies and space agencies looking for advanced, reliable potentiometer solutions for their space missions.

Frequently Asked Questions

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What types of potentiometers are available in this series?

The potentiometer series includes single-turn rotary potentiometers, multi-turn rotary potentiometers, rectilinear potentiometers, and pancake potentiometers. These are designed to suit a wide range of applications from precise position sensing to control systems.

What are the core technologies used in these potentiometers?

The core technologies include wirewound, conductive plastic, and hybrid elements, providing various performance characteristics such as high resolution, long life, and excellent linearity.

What is the range of nominal resistances offered?

Nominal resistances range from 470 ohms to 10 megaohms, depending on the specific model and application requirements.

What are the typical resistance tolerances?

The standard resistance tolerance at 20°C is typically ±10%, but it can vary based on the model and custom specifications.

What are the starting torques for rotary potentiometers?

The starting torques range from ≤ 0.1 N.cm for miniature models to ≤ 5 x 10–3 N.m for models with precision bearings.

What is the operating temperature range?

The operating temperature range generally spans from –55°C to +125°C, suitable for a wide array of industrial, military, and aerospace applications.

What are the sealing options available?

Sealing options include IP40, IP50, and up to IP68 for certain models, ensuring protection against dust, moisture, and other environmental factors.

What customization options are available?

Customization options include:

  • Various resistance values and tolerances
  • Special linearity options
  • Custom mechanical interfaces and shaft configurations
  • High-temperature versions
  • Special output configurations like 4-20 mA or integrated connectors
How can customized potentiometers be ordered?

Customized potentiometers can be specified using a detailed order code that includes segments for nominal resistance, linearity, electrical travel, mechanical options, and compliance. Contact technical support for assistance with specific configurations.

How do these potentiometers perform under vibration and shock conditions?

These potentiometers are designed to withstand high levels of vibration and shock:

  • Vibration resistance: up to 20 g, 1.5 mm, 10 to 500 Hz
  • Shock resistance: up to 50 g, ½ sine, 11 ms
  • General Technical Data
What are the standard electrical interfaces available?

The standard electrical interfaces include wirewound and conductive plastic elements, with output configurations that can be tailored to specific requirements.

How are the potentiometers tested for quality and performance?

Potentiometers undergo rigorous testing, including:

  • Micro-linearity and scale factor measurements
  • Vibration and shock testing
  • Environmental testing for thermal cycling, humidity, and salt fog resistance

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