Technical Data January 2015 3MTM Thermally Conductive Acrylic Interface Pad 5590H Product Description 3MTM Thermally Conductive Acrylic Interface Pad 5590H is a soft acrylic based pad designed to provide a preferential heat transfer path away from heat generating components. Because of its softness, 3M Interface Pad 5590H can decrease the load to integrated circuit chips during compression, and provides good tack to many surfaces. These properties lead to a high performance non-silicone based thermal pad. 3M Interface Pad 5590H is a higher thermal conductivity and somewhat firmer acrylic thermal pad, versus 3M Interface Pad 5589H. * Good softness and conformability to non-flat surfaces. * Excellent compressive stress relaxation. * High thermal conductivity. * UL94 V-O certified (File No. E176845). * Good surface tack leads to low thermal resistance at surface. * Non-silicone acrylic elastomer. *Good dielectric performance. * Excellent durability for long term thermal conductivity and electric insulation stability. Product Construction Film liner (Roll type: Film on firm layer) Thermally conductive firm acrylic elastomer (very low tack) surface Thermally conductive soft acrylic elastomer (low tack) core Dielectric Data 100MHz 500MHz 1GHz Dielectric constant Dielectric tangent Dielectric constant Dielectric tangent Dielectric constant Dielectric tangent 5590H e tan d e tan d e tan d 1.0mm t 5.7 0.03 5.5 0.024 5.4 0.024 3MTM Thermally Conductive Acrylic Interface Pad 5590H Typical Physical Properties and Performance Characteristics Note: T he following technical information and data should be considered representative or typical only and should not be used for specification purposes. Property Method Color Value 3MTM Thermally Conductive Acrylic Interface Pad 5590H -- Light grey / White 5 mm dia. dial gauge 0.5 / 1.0 / 1.5 3M method 3.0 UL94 V-O JIS K6249 2.1 Asker C Shore 00* 30 (data for conformable layer) 60 Volume Resistivity (-cm) JIS K6249 2.7 x 1012 Dielectric Strength (kV/mm) JIS K6249 33 Thickness (mm)** Thermal Conductivity (W/m-K) Flammability Density (g/cm3, @ 25C) Hardness Note: *Shore 00 test method results are based on a 6mm thick sample. Results will vary with sample thickness. Sample tested to soft layer side of the pad. **Tolerances of 1 mm and 1.5 mm = +/-10%, 0.5 mm +/- 0.1 mm. 3MTM Thermally Conductive Acrylic Interface Pad 5590H Heat Stability Duration (hrs) Initial 500 1000 2000 Thermal Conductivity (W/m-K) 3.0 3.0 3.0 3.0 Hardness (Asker C) 30 33 33 34 Appearance -- No effect No effect No effect Aged at 110C in high temperature chamber. 3MTM Thermally Conductive Acrylic Interface Pad 5590H UL Rating In Service Temperature Resistance Short Term (Hours-Days) 110-130C UL94 V-0 Long Term (Weeks-Months) 90-100C (2) 3MTM Thermally Conductive Acrylic Interface Pad 5590H Shelf Life 3MTM Thermally Conductive Acrylic Interface Pad 5590H shelf life is 12 months from date of manufacture when stored at room temperature conditions (20-25C & 50%RH ) and in the products original packaging. An attribute of the product that can vary with storage is the cosmetic appearance of the material. Slight yellowing may occur and is considered normal for these type of products. Within the shelf life period, liner release can gradually change and should be considered to ensure robust end use and processing. Gradual liner release changes that are within the liner release specification for the shelf life period noted are typical for these products. Technical Information The technical information, recommendations and other statements contained in this document are based upon tests or experience that 3M believes are reliable, but the accuracy or completeness of such information is not guaranteed. Product Use Many factors beyond 3M's control and uniquely within user's knowledge and control can affect the use and performance of a 3M product in a particular application. Given the variety of factors that can affect the use and performance of a 3M product, user is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user's method of application. 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