Polyimide (Kapton™) Thermofoil Flexible Heaters

Main Features of Polyimide (Kapton™) Thermofoil™ Flexible Heaters

• Polyimide (Kapton™) is a thin, semitransparent material with excellent dielectric strength. Polyimide Thermofoil™ heaters are ideal for applications with space and weight limitations, or where the heater will be exposed to vacuum, oil, or chemicals.
• The lightweight heater has less thermal mass to improve thermal response
• The thin profile with nearly infinite custom X-Y geometry design options allows you to apply heat where it’s needed, reducing operating costs
• Etched-foil heating technology provides fast and efficient thermal transfer
• Customized options (i.e. SMT components, flex leads and connectors) offer turnkey solutions to drastically reduce assembly time and increase productivity
• Custom profiling gives uniform thermal performance of the heating output to improve processing yields and productivity
• UL and TUV component recognition available
• Suitable for vacuum environments (NASA-RP-1061)
• NASA approved materials for space applications (S-311-P-079)
• Resistant to most chemicals: acids and solvents
• Radiation resistant to 106 rads if built with polyimideinsulated leadwire (custom option)
• Very small sizes available
• Fluid immersible designs available (not standard)
• Optional built-in temperature sensors

Current Stock Models: HK6900–HK6919

The table below lists the current Polyimide WA stock heaters with acrylic pressure-sensitive adhesive (PSA), 12-inch NEMA HP3 Type E leads and urethane-potted lead termination. These stock models have a listed maximum operating temperature of 100°C (212°F); broader construction and custom-design limits are not the stock-model ratings.

Voltage and power: the “Typical Voltage” column shows Minco’s published voltage range, and the “Watts at Typical Voltage” column shows the published maximum wattage, not a fixed power output. Select the operating voltage for the required wattage, mounting, heat sink and temperature. Power varies with voltage: P = V²/R. The catalogue lists a maximum watt density of 20 W/in²; consult Mod-Tronic for application selection.

Shape reference: 1 = rectangular/square with connections on the heated area; 21 = rectangular/square with an external lead tab; 30 = round with an external lead tab. Shape icons are schematic; use the listed dimensions and confirm the model drawing for installation.