WLFT 404 35 X 35

The Fischer Elektronik WLFT 404 35 x 35 is a thermally conductive, electrically insulating adhesive foil designed to provide efficient heat transfer between electronic components and heatsinks. Manufactured using a polyimide (Kapton® MT) carrier with double-sided pressure-sensitive acrylate adhesive, it offers reliable thermal coupling while eliminating the need for mechanical fasteners. The pre-cut 35mm x 35mm format enables fast, clean installation in a wide range of thermal management applications, including power semiconductors, LED modules, and industrial electronics. With a thermal conductivity of 0.4W/mK, dielectric strength of 5kV AC, and an operating temperature range of-30°C to +125°C, the WLFT 404 provides dependable performance in demanding environments.

• Thermally conductive foil with double-sided pressure-sensitive adhesive for easy component mounting
• Pre-cut 35mm x 35mm design allows quick and consistent installation
• 0.4W/mK thermal conductivity supports effective heat dissipation between components and heatsinks
• Polyimide (Kapton MT) carrier material provides excellent electrical insulation and durability
• 5kV AC dielectric strength helps maintain electrical isolation between mounted surfaces
• Thin 0.127mm construction is suitable for compact electronic assemblies
• Designed for operating temperatures from-30°C to +125°C
• UL 94 V-0 flammability rating supports safe use in electronic equipment
• Can replace mechanical fasteners while maintaining thermal performance and electrical insulation

Applications

HVAC