PI Heater

Polyimide Film Heating Elements for Precision Applications

EaseWise PI heaters (polyimide film heaters) are ultra-thin, flexible heating elements engineered for applications where space, weight, and precision matter. Built with etched nickel-chromium foil laminated between layers of high-performance polyimide film, our PI heaters deliver rapid, uniform heating from -200°C to 250°C with exceptional dielectric strength. At just 0.1mm to 0.3mm thick, they fit into the tightest assemblies — from satellite thermal control to medical diagnostic instruments. As a China-based PI heater supplier, EaseWise offers custom shapes, wattages, and integration options including adhesive backing, temperature sensors, and flex-circuit connectors.

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Wide Application of PI Heater

PI heaters are the go-to solution where ultra-thin profile, light weight, and precise temperature control are non-negotiable. Their etched foil construction delivers uniform heat across the entire surface, while the polyimide film provides excellent dielectric strength and chemical resistance. From deep-space satellites to handheld medical devices, PI heaters perform reliably in the most demanding environments.

Aerospace & Satellite

PI heaters are the industry standard for spacecraft thermal control, providing lightweight, outgassing-compliant heating for optics, batteries, and propulsion components in vacuum environments.

Medical Devices

Diagnostic analyzers, PCR thermal cyclers, and patient warming systems rely on PI heaters for precise, repeatable temperature control in compact form factors.

Semiconductor & Electronics

Wafer chuck heating, LCD display warming, and anti-condensation for optical sensors. PI heaters deliver clean, particle-free heating for sensitive electronics.

Battery Heating

EV battery packs, drone batteries, and portable electronics use PI heaters for cold-weather preheating, ensuring optimal charge/discharge performance below freezing.

Specification of PI Heater:

  1. High Temperature Resistance: Polyimide material can withstand extreme temperatures, often up to 250°C (482°F), and in some cases, even higher. This makes PI heaters suitable for high-temperature environments.
  2. Thin and Flexible: PI heaters are incredibly thin, flexible, and lightweight, which makes them ideal for use in compact or confined spaces, and in applications that require precise heating without adding bulk.
  3. Durability: Polyimide has excellent electrical insulation properties, chemical resistance, and durability, making PI heaters ideal for harsh environments.
  4. Energy Efficient: These heaters provide rapid heat-up times and efficient temperature control, reducing energy consumption.

PI Heater Customization Options:

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 (up to 2.5W/cm²)
Max Operating Temp 250°C continuous
Dielectric Strength ≥1500V AC
Shape Custom — flat, contoured, with cutouts or mounting holes
Adhesive Backing Optional 3M 468MP or 467MP
Temperature Sensor Optional integrated thermocouple / RTD / thermistor
Lead Termination Soldered pads, FPC connector, or flying leads

* Design Considerations

When specifying a PI heater, consider the watt density required for your target temperature rise, the available space and mounting surface, and the environmental conditions (vacuum, humidity, chemical exposure). Our engineering team can help you optimize the design — from element pattern layout to lead wire exit location — ensuring your heater performs reliably in the field.

Why Choose EaseWise PI Heaters

· Ultra-Thin Profile — As thin as 0.1mm, our PI heaters add negligible bulk to your assembly. Ideal for compact electronics, battery packs, and aerospace applications.
· High Temperature Capability — Continuous operation up to 250°C with short-term excursions higher. Polyimide film maintains its electrical and mechanical properties across extreme temperature ranges.
· Custom Etched Elements — Nickel-chromium alloy foil etched to precise resistance patterns. Uniform watt density across the entire heating surface — no hot spots, no cold zones.
· Flexible Integration — Optional 3M adhesive backing, integrated thermocouples or RTDs, soldered lead wires, and FPC connectors for plug-and-play installation.
· Fast Turnaround — Custom designs with 3D CAD support prototyped in 7-10 working days. Volume production available with full traceability.

Product Range of PI Heater

EaseWise PI heaters are manufactured to your specifications — from single prototypes to production volumes. Common configurations include:

 

  • Flat Rectangular PI Heaters — Standard for general-purpose surface heating
  • Circular & Ring PI Heaters — For lens warmers, optical mounts, and cylindrical components
  • Contoured PI Heaters — 3D-shaped to fit complex geometries
  • PI Heater with Integrated Sensor — Built-in thermocouple or RTD for closed-loop control

Custom PI Heater with Fast and Uniform Heating

Durable PI Heater for Medical and Laboratory Equipment

Thin and Lightweight PI Heater for Compact Devices

High-Precision PI Heater for Efficient Heating

Flexible Polyimide PI Heater for Industrial Use

High-Temperature Resistant PI Heater with Custom Options

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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.

Yes, 3M high-temperature acrylic adhesive is available for easy mounting on flat surfaces.