Technical Data July 2020 3M Thermally Conductive Acrylic Interface Pad 5590H Product Description 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. These high- performing thermal pads have the following features: Key Features Easy handling and soft pad High conformability even for non-flat IC surfaces and automotive EV batteries Incorporates a thin, firm acrylic layer for good handling Highly thermally conductive while electrically insulating Slight tack allows pre-assembly Good wettability for better thermal conductivity Non-silicone acrylic elastomer Excellent durability UL94 V-0 listed (File No. E176845) Product Construction/Material Description Thermally conductive conformable layer Thermally conductive firm layer (less tack) permanent PET liner (outside of roll) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3M Thermally Conductive Acrylic Interface Pad 5590H Property Value Color White/Gray Base resin Acrylic Thickness 0.5, 1.0mm, 1.5 mm, 2.0 mm (thicker pads available upon request) Filler type Ceramic Very low tack layer Good for re-workability and handling, light gray color-permanent layer Low tack layer Soft, good thermal conductivity, white color 3M Thermally Conductive Acrylic Interface Pad 5590H Applications Heat transfer in consumer electronics and automotive electronic products Decrease of compression stress to electronic parts by thermal pad conformability Examples: o Heat transfer between PCB and heat sink o Thermal management in automotive EV batteries o Power electronics component thermal management o Chip on film (COF) heat conduction o Automotive electronics o LED thermal management o General gap filling in electronic devices Typical Physical Properties and Performance Characteristics Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Final product specifications and testing methods will be outlined in the products Certificate of Analysis (COA) that is shipped with the commercialized product. This value is a measured value, not a guaranteed value. 3M Thermally Conductive Acrylic Interface Pad 5590H Property Method Value Thermal conductivity 3M Method 2.8 W/mK *1 Thermal conductivity ASTM D5470 2.0 W/mK *2 Hardness Asker C 55 Shore 00 70 11 Volume Resistivity ASTM D257 6 X 10 (-cm) Dielectric strength ASTM D149 12 (kV/mm) 3 Density ASTM D6111 2.1 (g/cm ) Flammability UL94 V-0 Operating Temperature Range Short Term (Hours-Days) -40C to 130C Long Term (Weeks-Months) -40C to 110C *1 Methods listed as ASTM are tested in accordance with the ASTM method noted. Sample thickness are 2-8mm. Sample size is 33mm. Pressure condition is fixed at 200kPa, with thickness control. *2 Test results are based on a 6mm thickness sample. Sample tested to soft layer side of sample pad.