3M™ Thermally Conductive Acrylic Interface Pad 5590H
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 highperforming 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 |
Applications
- Heattransfer in consumer electronics and automotive electronic products
- Decreaseof compression stress to electronic parts by thermal pad conformability
Examples:
- Heattransfer between PCB and heat sink
- Thermalmanagement in automotive EV batteries
- Powerelectronics component thermal management
- Chipon film (COF) heat conduction
- Automotiveelectronics
- LEDthermal management
- Generalgap 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 product’s 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 |
| Thermal conductivity | ASTM D5470 | 2.0 W/mK *1 |
| Hardness | Asker C Shore 00 | 55*2 70 |
| Volume Resistivity | ASTM D257 | 6 X 10 11 (Ω–cm) |
| Dielectric strength | ASTM D149 | 12 (kV/mm) |
| Density | ASTM D6111 | 2.1 (g/cm3) |
| Flammability | UL94 | V-0 |
| Operating Temperature Range | Short Term (Hours-Days) Long Term (Weeks-Months) | -40°C to 130°C -40°C to 110°C |
*1 Methods listed as ASTM are tested in accordance with the ASTM method noted. Sample thickness are 2-8mm. Sample size is 33mmφ. 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.
Heat Resistance *
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 product’s Certificate of Analysis (COA) that is shipped with the commercialized product. This value is a measured value, not a guaranteed value.
As tested on 3M™ Thermally Conductive Acrylic Interface Pad 5590H | |||
Duration (hrs) | Initial | 1000 | 2000 |
Thermal conductivity (W/m-K) | 3.0 | 3.0 | 3.0 |
Hardness (Asker C) | 30 | 33 | 34 |
Appearance | – | No effect | No effect |
*Note1: Aged by dwelling at 110℃ in high temperature chamber.
*Note2: Thermal conductivity for aging tested using the 3M Method.
Storage and Shelf Life
The shelf life of 3M™ Thermally Conductive Acrylic Interface Pad 5590H is 24 months from the date of manufacture
when stored in the original packaging materials and stored at 21°C (70°F) and 50% relative humidity.
Certificate of Analysis (COA)
The 3M Certificate of Analysis (COA) for this product is established when the product is manufactured and deemed
commercially available from 3M. The COA contains the 3M test methods, specifications limits and test results for the
product’s performance attributes that the product will be supplied against. Contact your local 3M representative for
this product’s COA.