WLFT 404 50 X 50

The Fischer Elektronik WLFT 404 50 x 50 is a thermally conductive, electrically insulating adhesive foil designed for efficient heat transfer between electronic components and heatsinks. Manufactured from a polyimide (Kapton® MT) carrier with double-sided pressure-sensitive acrylate adhesive, it provides secure component mounting while eliminating the need for mechanical fasteners in many applications. The pre-cut 50mm x 50mm format enables quick and consistent installation, making it ideal for power semiconductors, LED modules, power supplies, and industrial electronic equipment. 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 delivers reliable thermal management and electrical insulation in demanding environments.

• Thermally conductive foil with double-sided pressure-sensitive adhesive for secure component attachment
• Pre-cut 50mm x 50mm format enables fast, accurate, and repeatable installation
• 0.4W/mK thermal conductivity supports efficient heat transfer from heat-generating components to heatsinks
• Polyimide (Kapton MT) carrier material provides excellent electrical insulation and long-term durability
• 5kV AC dielectric strength helps maintain electrical isolation between mounted surfaces
• Thin 0.127mm profile is ideal for compact electronic and thermal management designs
• Operating temperature range of-30°C to +125°C ensures dependable performance across a wide variety of applications
• UL 94 V-0 flammability rating supports enhanced safety in electronic equipment
• Can replace mechanical fasteners while providing both thermal conductivity and electrical insulation.