PI heating film

The TYPI series PI heating film (polyimide heating film) is an ultra-thin, flexible, planar electrothermal element widely used in precision thermal management applications. It typically features a three-layer “sandwich” structure: the upper and lower layers are polyimide (PI) films serving as insulating protective layers, while the middle layer consists of a metal alloy foil—commonly nickel-chromium or stainless steel foil—carefully etched into a serpentine circuit pattern to act as the heating core. Electrodes are led out from both ends for easy connection to a power source. The overall thickness usually ranges from only 0.15 to 0.35 mm.

Product Description

The TYPI series PI heating film (polyimide heating film) is an ultra-thin, flexible, planar electric heating element widely used in precision thermal management applications. It typically features a three-layer “sandwich” structure: the upper and lower layers are polyimide (PI) films serving as insulating protective layers, while the middle layer consists of a metal alloy foil—commonly nickel-chromium or stainless steel foil—carefully etched into a serpentine circuit pattern to act as the heating core. Electrical terminals are led out from both ends for easy connection to a power source. The overall thickness usually ranges from only 0.15 to 0.35 mm.


Key Features and Advantages                         
• Ultra-thin and flexible: Bendable and conformable to curved surfaces, with a minimum bending radius often less than 1 mm. Extremely lightweight and takes up no extra space.
• Temperature Resistance and Insulation: It can withstand long-term operating temperatures up to 150–200℃ and short-term exposure to temperatures exceeding 300℃. PI film boasts high dielectric strength, excellent chemical resistance, and radiation resistance.
• High-efficiency temperature control: low thermal inertia, rapid heating rate (from a few seconds to just over ten seconds), excellent temperature uniformity, and temperature control accuracy up to ±2%.
• High power density: The surface power density can reach a relatively high level, making it ideal for applications requiring small size and high-density heating.
• Long service life: Sealed using a vacuum hot-pressing process, eliminating the risk of oxidation and wire breakage; under normal operating conditions, the service life can reach tens of thousands of hours.

 

Product Introduction


Series

Application scenarios

Product Features

Main product parameters

TYPE Series

PI

Heating film

Consumer electronics

Mobile phone / Low-temperature battery thermal insulation for tablets, heating for wearable devices, printer fusing, etc.

Product dimensions

Thickness: 0.15–0.35 mm

Maximum size: Single sheet ≤500×600 mm,

Larger, splicable

 

Home appliances /Smart Home

Mop robot heating /Drying, etc.

Operating voltage

1.5V to 600V

Automotive electronics

Preheating the new energy battery pack / Insulation,

steering wheel / Seat heating, etc.

Rated power / Power density

0.8–8 W/cm²

Medical equipment

Blood analyzer, constant temperature incubator,

Local heating with a physiotherapy device

Long-term operating temperature

-40℃ to 200℃

Industrial equipment

Pipeline heating, semiconductor process temperature control,

Sensor freeze protection

Temperature uniformity

±2~5℃

Structural shape

Custom-designed according to the customer’s actual usage needs and scenarios.

 

 

 

Application Example


Keywords:

Sensitive components

TOPYAR

Category:

TYFR Series PI Heating Film

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