3M™ 5590H Thermally Conductive Acrylic Interface Pad

3M™ Thermally Conductive Acrylic Interface Pad 5590H is designed to provide a preferential heat transfer path between heat generating components, such as IC Chip or Electric Vehicle (EV) battery, and heat sink or spreader. It consists of highly conformable, slightly tacky acrylic elastomer sheets filled with thermally conductive ceramic particles. 

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  • 3M™ 5590H Thermally Conductive Acrylic Interface Pad


  • Available in 20 mil to 60 mil thickness (0.5 mm to 1.5 mm)
  • Easy handling and soft pad
  • Highly conformability even for non-flat IC surfaces and automotive EV batteries
  • Incorporates a thin firm acrylic layer for good handling
  • Highly thermally conductive while being electrically insulating
  • Slight tack allows pre-assembly. Good wettability for better thermal conductivity
  • Non-silicone acrylic elastomer
  • Excellent durability for long term conductivity
  • UL94 V-0 listed (File No. E176845)

Typical Applications

  • Heat transfer between PCB and heat sink
  • Thermal management in automotive EV batteries
  • Power electronics component thermal management
  • Chip on film (COF) heat conduction
  • Automotive electronics o LED thermal management
  • General gap filling in electronic devices
Data Sheets & Summary Sheets

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