3M™ Thermally Conductive Acrylic Interface Pad 5571
Custom Die-Cut Thermal Pad | A4 & A5 Sizes
3M™ Thermally Conductive Acrylic Interface Pad 5571 is a soft, conformable thermal interface material designed to provide a preferential heat transfer path between heat-generating electronic components and cooling devices such as aluminum plates and heat sinks. The material is a slightly tacky acrylic elastomer containing a thermally conductive ceramic filler. It is suitable for custom converting and die-cutting applications where application-specific thermal pad shapes and dimensions are required.
Key Features
- High thermal conductivity of 2.1 W/m-K for efficient heat transfer.
- UL94 V-0 performance for demanding electronic and industrial applications.
- Good electrical insulation properties help provide electrical separation between components and cooling structures.
- Soft and conformable construction helps fill gaps and surface irregularities.
- Good wetting performance supports improved thermal contact between mating surfaces.
- Thin acrylic construction supports easy handling during pre-assembly and die-cutting.
- Available in custom die-cut shapes, A4, A5 and application-specific formats.
- Suitable for prototype, development, small-batch and production requirements.
Product Highlights
2.1 W/m-K Thermal Conductivity
Provides an efficient thermal path for transferring heat from electronic components to heat sinks and cooling plates.
Custom Die-Cut
Can be converted into application-specific shapes and geometries to match the required thermal interface area.
A4 & A5 Sheet Format
A4 and A5 sheet formats provide convenient options for prototyping, development, maintenance and production requirements.
UL94 V-0
UL94 V-0 performance supports use in electronic, automotive and industrial thermal management applications.
Soft & Conformable
The compliant acrylic elastomer conforms to uneven surfaces and helps fill interface gaps for better thermal contact.
Electrical Insulation
Provides good electrical insulation while maintaining a preferential thermal transfer path between components and cooling devices.
Custom Die-Cut Service
Custom Die-Cut Shapes
3M™ 5571 thermal pad material can be converted into custom shapes and geometries according to the required application.
A4 Thermal Pad Sheets
A4 thermal pad sheets are suitable for prototyping, development, maintenance and general thermal management applications.
A5 Thermal Pad Sheets
A5 sheet format provides a convenient solution for smaller assemblies and application-specific thermal requirements.
Custom Dimensions
Custom length, width and thickness requirements can be evaluated according to the application design.
Complex Geometries
Cut-outs, holes, slots, corners and irregular profiles can be incorporated where suitable for the converting process.
Drawing & CAD Based
Custom thermal pads can be produced according to customer drawings, CAD files, dimensions or sample components.
Specifications
| Product Name | 3M™ Thermally Conductive Acrylic Interface Pad 5571 |
|---|---|
| Product Model | 5571 |
| Manufacturer | 3M |
| Product Type | Thermally Conductive Acrylic Interface Pad |
| Base Material | Acrylic Elastomer |
| Filler | Thermally Conductive Ceramic Filler |
| Thermal Conductivity | 2.1 W/m-K |
| Available Thickness | 1.0 ± 0.05 mm / 1.5 ± 0.10 mm / 2.0 ± 0.10 mm |
| Color | Yellowish White |
| Liner | Transparent Film Liner |
| Dielectric Strength | 17 kV/mm |
| Electrical Insulation | Good Electrical Insulation Properties |
| Volume Resistivity | 2.5 × 1014 Ω-cm |
| Hardness | 78 Shore 00 |
| Density | 1.9 g/cm³ @ 25°C |
| Flammability | UL94 V-0 |
| Conformability | Moderately Conformable to Uneven Surfaces |
| Surface | Slightly Tacky Acrylic Elastomer |
| Sheet Format | A4 / A5 / Custom |
| Converting | Die-Cutting / Custom Converting |
| Custom Shape | Available Based on Application Requirements |
| Application | Thermal Management and Heat Dissipation |
Technical values are typical/representative and should not be used as specification limits. Product performance may vary depending on application, substrate, compression, processing conditions and environmental factors. Always refer to the latest 3M technical documentation for application-specific requirements.
Resources
Technical Data Sheet
View or download the technical data sheet for 3M 5571 Thermal Pad, Custom Die-Cut (A4, A5 Sizes).
View TDSApplications
EV Battery Thermal Management
Suitable for thermal interface applications between battery components and cooling plates in electric vehicle battery systems.
Power Supplies & Inverters
Suitable for power supplies, converters, inverters and electronic power modules requiring thermal management.
Electronic Control Units
Suitable for electronic control units and modules where heat needs to be transferred to a cooling structure.
LED Lighting Systems
Suitable for LED drivers and lighting assemblies requiring an efficient thermal interface.
Displays & HMI
Suitable for displays and HMI assemblies where conformability and thermal management are required.
Junction Boxes & Busbars
Suitable for selected junction box, busbar and electrical assembly applications requiring thermal management and insulation.
Product Uses
3M™ Thermally Conductive Acrylic Interface Pad 5571 is designed to provide a heat transfer path from heat-generating electronic components to cooling devices such as aluminum plates and heat sinks.
The soft, slightly tacky acrylic elastomer contains a thermally conductive ceramic filler. The material is moderately conformable to uneven substrates and helps fill gaps between mating surfaces for improved thermal performance.
With 2.1 W/m-K thermal conductivity and good electrical insulation properties, 3M 5571 can be used where thermal transfer and electrical separation are required in the same interface.
Typical applications include EV battery thermal management, battery cooling plates, busbars, displays, electronic control units, inverters, junction boxes and LED lighting systems.
For custom requirements, the material can be supplied as A4 or A5 sheets or converted into application-specific die-cut shapes. Custom dimensions, cut-outs, holes, slots and other geometries can be evaluated according to customer requirements.
The thin acrylic layer makes the material suitable for handling during pre-assembly and die-cutting. This makes 3M 5571 a practical option for both prototype and production thermal interface components.
For optimal thermal performance, the mating surfaces should be clean and dry. 3M indicates that approximately 10–20% compression should be allowed to achieve optimal wetting of the thermal interface.
Need Custom 3M 5571 Thermal Pads?
Contact us for A4/A5 thermal pad sheets, custom die-cut shapes, application-specific dimensions, bulk requirements and converting requirements.