Polyimide heater/ pi heater is made of polyimide film as outer insulator, metal foil and metal wire as inner conductive heating element, and is heat-sealed at high temperature and high pressure. It has excellent insulation strength, excellent electrical strength, excellent thermal conductivity efficiency, and excellent resistance stability. This makes it widely applicable to the heating field and can achieve a fairly high temperature control accuracy. PI heater can be used for battery module heating, medical device heating, beauty equipment, etc. PI Heater can be divided into Etched Foil Heater, polyimide heating film Polyimide Flexible Heater, Battery polyimide film insulated flexible heaters, battery PI heating sheet film, flex pcb heater, Constantan Heater, etc. For high-quality PI heaters, it is essential to choose a reliable fpc supplier like bolion.
Diverse Types of polyimide heater
Etched Foil Heaters
Etching Copper heater, the most cost-effective choice. The heating element will be etched and pre-laminated material and used extensively worldwide in flexible circuits. However, a heater designed with copper requires a lot of surface area because of its low resistivity of 0.017 Ω·um, thus it is typically used for very low resistive designs.
Operating environment temperature: -40℃-130℃, with the short-term temperature up to 200℃.
Application: telecommunications, medical device, automotive device, battery module, wearable device.
Etched Foil Heaters
Polyimide Film Heater
custom polyimide heaters has the characteristics of flexible, lightweight and thin, easy to bend or fold, which can be well fitted to flat or curved objects.
Application area：
Scientific analytical instruments, providing a constant temperature source for thermal conductivity (or insulation coefficient) testers, medical instruments, etc., to stabilize the operating temperature of optoelectronic components.
In cryogenic environments, enabling equipment and instruments to reach safe operating temperatures. For example, instruments and facilities on artificial satellites, spacecraft, and aircraft.
Automotive, like oil pans, defrosting elements for rearview mirrors and snow/ice removal, antennas or radars
The medical health, such analyzers, infusion pumps, ventilators
Polyimide heater element
Polyimide Flexible Heater
A Polyimide Flexible Heater is a lightweight, thin, and durable heating element made from polyimide film. It offers excellent thermal stability, uniform heat distribution, and flexibility, making it ideal for applications in aerospace, medical devices, and electronics where precise temperature control is essential.
Polyimide Flexible Heater
Battery Polyimide Heater Film
Applied to the field of new energy electric vehicles, the use of energy saving, easy to install, no pollution, so that the battery can be heated normally in low temperature environment, to ensure the normal operation of electric vehicles, to extend the service life and can start working quickly at low temperatures
Battery Polyimide Heater Film
Constantan Heater
Constantan is a variation of Cupro-Nickel with different percent of copper and nickel.
Constantan is also typically used in flex circuit applications such as strain gauges and thermocouples.
The high resistivity makes this foil ideal for applications that require a high resistance packed into in a small area.
Constantan also has a very low TCR.
Constantan Heater
Polyimide Heater Application Areas
Automotive electronics (defogger, power, etc.), new energy battery modules, medical devices (analyzers, infusion, ventilators, etc.), aerospace products, and communication equipment.
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