HOTPOT
What is a HotPot?
In simple terms, the HotPot membrane potentiometer is a resistive element, which comprises a conductive resistor, a sealed encasement and a simple wiper assembly. A membrane potentiometer can also function as a voltage divider.
The HotPot is a three-wire system with two resistive output channels and an electrical collector channel.
By pressing a wiper down onto the top circuit the HotPot produces the desired electrical output.
The “wiper” is a non-conductive mechanism that depresses the top circuit actuating the potentiometer from the outside of the element. The top and bottom circuits are separated by 0.15mm (0.006″) of spacer adhesive build-up and contact between the circuit occurs by pressure (usually 1-3 Newtons) from the wiper on the top circuit, pushing down until the top circuit connects with the bottom circuit to create a potentiometric output.
The construction of the wiper design can adapt to any application because most materials can serve as the wiper: plastics, metals, sliders, rollers, wheels, etc. Also, the HotPot can also be manually (hand) actuated.
HotPot™ by Spectra Symbol – High-Temperature Position Sensing Made Simple
Presented by Amironic – Official Representative in Israel
When your environment gets hot, your position sensor needs to stay cool — and reliable. That’s exactly what the HotPot™ by Spectra Symbol is built for. Designed to thrive in high-temperature, high-demand environments, the HotPot™ offers dependable analog position sensing in a thin, sealed, and rugged package.
Whether in industrial machinery, military systems, or automotive components, the HotPot™ delivers precise feedback with a long operating life — even when the heat is on.
Now available in Israel through Amironic, your trusted local partner.
HotPot™ – Key Advantages
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High-Temperature Operation: -40°C to +85°C
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Ultra-Thin Profile: Less than 0.5mm thick
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Analog Voltage Divider Output
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Three-Wire System – Simple Integration
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Sealed, Robust, and Long-Life Design
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Ideal for Harsh Environments
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Easy to Mount and Adapt to Existing Designs
What is the HotPot™?
The HotPot™ is a membrane potentiometer engineered for elevated temperatures. It consists of:
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A resistive strip sealed inside a durable enclosure
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A non-conductive wiper that applies pressure to actuate the sensor
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A 0.15mm spacer separating the top and bottom conductive layers
When pressure is applied (typically 1–3 Newtons), the top layer contacts the bottom layer, creating a potentiometric output proportional to the point of contact. It works just like a standard analog voltage divider — but in a compact, heat-tolerant form.
How it Operates
The HotPot™ uses a three-wire configuration:
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Two resistive output terminals
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One signal collector terminal (via the wiper)
The wiper can be made from a wide range of materials — plastic, metal, rubber, rollers, sliders, or even manual (finger) actuation. This flexibility makes the HotPot™ adaptable to any mechanical system requiring precision linear input.
Where is HotPot™ Used?
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Industrial machinery operating near furnaces or heated components
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Automotive systems, especially near engines or exhaust components
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Military and defense equipment exposed to extreme field conditions
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Medical devices requiring sterilization or thermal resistance
Why Choose HotPot™ Through Amironic?
As Spectra Symbol’s exclusive distributor in Israel, Amironic provides:
✅ Local technical support in Hebrew and English
✅ Fast supply chain and logistics
✅ Application-specific customization
✅ OEM integration services
HotPot™ – The Position Sensor Built for Extreme Conditions
Need a rugged, low-profile linear sensor for high-temperature environments?
HotPot™ delivers consistent, contact-based analog feedback — no matter how intense the heat.
Get in touch with Amironic today and let us help you integrate HotPot™ into your next innovation.