Technical Data October 2016 3M Thermally Conductive Acrylic Interface Pad 5590PI Product Description 3M Thermally Conductive Acrylic Interface Pad 5590PI is designed to provide a preferential heat transfer path between heat generating components like integrated circuit chip, LED lighting and heat spreaders. 3M pad 5590PI consists of a highly conformable slightly tacky acrylic elastomer sheet filled with conductive ceramic particles. Key Features Flame retardant, UL 94 V-0 No silicone/siloxane gas, which can cause electric connection failure Good softness and conformability even to non-flat IC surfaces Incorporates a thin polyimide film for good handling Good thermal conductivity, heat resistance and electrical insulation properties Slight tack allows pre-assembly Good wettability for better thermal conductivity 3M Thermally Conductive Acrylic Interface Pad 5590PI Polyimide Thermally conductive acrylic conformable elastomer (low tack) Film Liner Product Construction/Material Description 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 5590PI Property Value Color Brown/White Base Resin Acrylic Elastomer Thickness 0.2 mm Liner Type PET Applications IC packaging heat conduction Heat sink Chip on film (COF) thermal management for uniform temperature LED board thermal interface management LED TV driver IC Chip General gap filling in electronic device Electric vehicle/hybrid battery for automotive 3M Thermally Conductive Acrylic Interface Pad 5590PI Application Techniques Substrate surfaces should be clean and dry prior to pad application. Isopropyl alcohol (isopropanol) applied with a lint free wipe or swab should be adequate for removing surface contamination such as dust or finger prints. Do not use denatured alcohol or glass cleaners which often contain oily components. Allow the surface to dry for several minutes before applying the pad. More aggressive solvents (such as acetone, methyl ethyl ketone (MEK) or toluene) may be required to remove heavier contamination (grease, machine oils, solder flux, etc.) but should be followed by a final isopropanol wipe as described above. Be sure to read and follow the manufacturers precautions and directions when using primers and solvents. For best product performance, it is important to use recommended pressure and time conditions to achieve as much wetting as possible. Ideal application temperature range is from 0C to 40C. Initial application to surfaces at temperatures below 30C is not recommended because the pad becomes too firm to be wetted readily. However, once properly applied, low temperature performance is generally satisfactory. 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. 3M Thermally Conductive Acrylic Interface Pad 5590PI a b Property Method Value 3 Density (g/cm ) 3M test method 2.0 Dielectric strength (kV) JIS K6911 8 Thermal conductivity (W/m k) 3M test method 3.0 2 Thermal impedence (C cm /W) 3M test method 5.1 2 Thermal impedence (C inch /W) 3M test method 0.79 Flammability UL 94 V-0 Asker C 30 Hardness Shore 00 60 12 Volume resistivity (-cm) JIS K6249 2.7 x 10 a Contact your local 3M representative for more information on the 3M test methods used b Measurement value of the acrylic elastomer c,d Heat Resistance 3M Thermally Conductive Acrylic Interface Pad 5590PI Duration (hrs) Initial 500 1000 2000 Hardness (Asker C) 30 33 33 34 Appearance - No effect No effect No effect c Acrylic elastomer aged by dwelling at 110C high temperature chamber d The end use customer application, design and verification testing will determine the final in-use effective temperature range based on each applications environmental conditions Storage and Shelf Life The shelf life of 3M Thermally Conductive Acrylic Interface Pad 5590PI is 12 months from the date of manufacture when stored in the original packaging materials and stored at 21C (70F) and 50% relative humidity.