PI Heater
Polyimide Film Heaters for Precision Applications
EaseWise PI heaters (polyimide film heaters) are ultra-thin, flexible heating elements designed for applications where space, weight, and precise temperature control matter. Built with etched nickel-chromium foil laminated between layers of high-performance polyimide film, our PI heaters provide rapid, uniform heating from -200°C to 250°C with high dielectric strength. With thicknesses from 0.1mm to 0.3mm, they fit into compact assemblies used in applications ranging from satellite thermal control to medical diagnostic equipment. As a China-based PI heater supplier, EaseWise offers custom shapes, wattages, and integration options including adhesive backing, temperature sensors, and flex-circuit connectors.
Wide Application of PI Heater
PI heaters are an ideal solution for applications requiring an ultra-thin profile, low weight, and precise temperature control. Their etched foil construction provides uniform heating across the surface, while the polyimide film offers excellent dielectric strength and chemical resistance. From satellite thermal control systems to compact medical devices, PI heaters provide reliable performance in demanding environments.
Aerospace & Satellite
PI heaters are widely used for spacecraft thermal control, providing lightweight, low-outgassing heating for optics, batteries, sensors, and propulsion components in vacuum environments. Their ultra-thin profile and flexible design make them suitable for space-constrained aerospace systems.
Medical Devices
Diagnostic analyzers, PCR thermal cyclers, and patient warming systems use PI heaters for precise and repeatable temperature control in compact medical equipment. Their ultra-thin, flexible construction allows reliable heating where space is limited.
Semiconductor & Electronics
PI heaters are used for wafer chuck heating, LCD display warming, and anti-condensation in optical sensors. Their thin, flexible construction provides clean, uniform, particle-free heating for sensitive semiconductor and electronic components.
Battery Heating
EV battery packs, drone batteries, and portable electronics use PI heaters for low-temperature preheating, helping maintain reliable charging and discharging performance in cold environments. Their ultra-thin, flexible construction allows efficient heating in compact battery assemblies where space is limited.
Specification of PI Heater:
PI Heater Key Features
- High Temperature Resistance — Polyimide film supports operating temperatures up to 250°C (482°F), making PI heaters suitable for demanding heating environments.
- Ultra-Thin & Flexible — Thin, lightweight construction allows PI heaters to fit into compact or confined spaces while providing precise surface heating.
- Durable & Chemically Resistant — Polyimide provides excellent electrical insulation, chemical resistance, and durability for demanding operating conditions.
- Fast & Efficient Heating — Etched foil heating elements provide rapid heat-up and uniform temperature distribution with efficient temperature control.
PI Heater Customization Options:
PI Heater Technical Specifications
| Parameter | Standard Options |
|---|---|
| Film Thickness | 0.1mm / 0.15mm / 0.2mm / 0.3mm |
| Heating Element | Etched Ni-Cr foil (standard) |
| Voltage | 3.7V / 5V / 12V / 24V / 110V / 220V |
| Wattage | Custom per design |
| Watt Density | Up to 2.5W/cm², depending on design |
| Maximum Operating Temperature | 250°C continuous operation |
| Dielectric Strength | ≥1500V AC |
| Shape | Custom flat or contoured designs with cutouts or mounting holes |
| Adhesive Backing | Optional 3M 468MP or 467MP |
| Temperature Sensor | Optional integrated thermocouple, RTD, or thermistor |
| Lead Termination | Soldered pads, FPC connector, or flying leads |
Design Considerations
When specifying a PI heater, consider the required watt density, target temperature rise, available mounting space, and environmental conditions such as vacuum, humidity, or chemical exposure. EaseWise can help optimize the design, including heating element pattern, heater dimensions, and lead wire exit location, to ensure reliable performance in your application.
Why Choose EaseWise PI Heaters
- Ultra-Thin Profile — As thin as 0.1mm, PI heaters add minimal bulk to your assembly and are ideal for compact electronics, battery packs, and aerospace applications.
- High Temperature Capability — Supports continuous operation up to 250°C while maintaining reliable electrical insulation and mechanical performance across a wide temperature range.
- Custom Etched Elements — Nickel-chromium foil is etched into precise resistance patterns to provide uniform watt density across the designed heating area.
- Flexible Integration — Optional 3M adhesive backing, integrated thermocouples or RTDs, soldered lead wires, and FPC connectors simplify installation and system integration.
- Fast Prototyping — Custom designs can be supported with 3D CAD and typically prototyped in 7–10 working days. Volume production and traceability options are available.
Product Range of PI Heater
PI Heater Configurations
EaseWise PI heaters are manufactured to your specifications, from single prototypes to production volumes. Common configurations include:
- Flat Rectangular PI Heaters — A practical choice for general-purpose surface heating.
- Circular & Ring PI Heaters — Designed for lens warmers, optical mounts, and cylindrical components.
- Contoured PI Heaters — Custom-shaped designs conform to curved or complex geometries.
- PI Heaters with Integrated Sensors — Built-in thermocouples or RTDs support closed-loop temperature control.
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Frequently Asked Questions
A PI heater (polyimide heater) is a flexible heating element made by laminating an etched metal foil between layers of polyimide film. It is ultra-thin (0.1-0.3mm), lightweight, and capable of operating at temperatures up to 250°C.
PI heaters are much thinner (0.1mm vs 1.8mm), support higher watt densities, and perform better in vacuum environments. Silicone heaters are thicker, more durable against physical abuse, and generally lower cost. PI is preferred for precision applications; silicone for general industrial heating.
Yes. We manufacture custom shapes including circles, rings, and irregular outlines with cutouts and mounting holes. Send your drawing for a quote.
Sample orders of 1-5 pieces accepted. Production MOQ typically 10-50 pieces.