WLFT 404 53 X 53

The Fischer Elektronik WLFT 404 53 x 53 is a thermally conductive, electrically insulating adhesive foil designed to provide efficient heat transfer between electronic components and heatsinks. Manufactured from a polyimide (Kapton® MT) carrier with a double-sided pressure-sensitive acrylate adhesive, it offers secure bonding while eliminating the need for mechanical fasteners in many thermal management applications. The pre-cut 53mm x 53mm format simplifies installation and is ideal for use with power semiconductors, LED modules, power supplies, and industrial electronic equipment. Featuring 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 dependable thermal performance and electrical insulation in demanding environments.

• Thermally conductive foil with double-sided pressure-sensitive adhesive for secure and reliable component mounting
• Pre-cut 53mm x 53mm format enables quick, accurate, and repeatable installation
• 0.4W/mK thermal conductivity supports effective heat transfer from 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 suitable for compact electronic and thermal management designs
• Operating temperature range of-30°C to +125°C ensures reliable performance in a wide range 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

Applications

Thermal Management, Industrial