3M™ Thermally Conductive Acrylic Interface Pad 5571
Custom Die-Cut Thermal Pad | A4 | A5 | Custom Shapes
3M™ Thermally Conductive Acrylic Interface Pad 5571 is a conformable thermal interface material designed to provide a preferential heat transfer path from heat-generating components to cooling devices such as aluminum plates and heat sinks. The material consists of a slightly tacky acrylic elastomer with a thermally conductive ceramic filler. Its soft and conformable construction helps fill surface irregularities and gaps between mating surfaces.
Key Features
- Thermal conductivity of 2.1 W/m-K provides an efficient thermal path between heat-generating components and cooling structures.
- UL94 V-0 listed for demanding electronic, automotive and industrial applications.
- Good electrical insulation properties help provide electrical separation while maintaining thermal transfer.
- Conformable material can accommodate non-flat surfaces and help fill interface gaps.
- Soft and compliant construction allows pressure relaxation and helps reduce high-pressure zones on components.
- Slight tack and good wetting performance support thermal contact and pre-assembly.
- Thin acrylic construction supports handling, pre-assembly and die-cutting.
- Available for custom converting including die-cut shapes, A4, A5 and application-specific dimensions.
Product Highlights
2.1 W/m-K Thermal Conductivity
Provides an efficient heat transfer path from electronic components to heat sinks, cooling plates and other heat-spreading structures.
Custom Die-Cut Shapes
Can be converted into application-specific geometries to match component layouts, mounting areas and cooling structures.
A4 & A5 Sheet Formats
Suitable for A4, A5 and other sheet-format requirements for prototyping, development and production applications.
UL94 V-0
UL94 V-0 performance supports applications where flame performance and electrical insulation are important.
Conformable & Soft
The soft acrylic elastomer conforms to non-flat surfaces and helps fill interface gaps for improved thermal contact.
Application-Specific Converting
Suitable for custom converting and die-cutting according to customer drawings, dimensions and component layouts.
Custom Converting Options
A4 Thermal Pad Sheets
A4-size thermal interface sheets can be supplied for prototyping, laboratory work, maintenance and general thermal management requirements.
A5 Thermal Pad Sheets
A5-size sheets provide a convenient format for smaller assemblies, development work and thermal interface prototyping.
Die-Cut Components
Custom die-cut thermal pads can be produced to match component outlines, mounting holes, cut-outs and other application requirements.
Custom Shapes
Complex or application-specific geometries can be considered based on customer drawings, CAD files or sample components.
Single or Multiple Layers
Custom converting can be planned around required thickness, liner configuration and assembly requirements.
Application-Specific Dimensions
Custom length, width and geometry options can be evaluated according to the thermal interface area and component design.
Specifications
| Product Name | 3M™ Thermally Conductive Acrylic Interface Pad 5571 |
|---|---|
| Product Model | 5571 |
| Product Series | 3M™ Thermally Conductive Acrylic Interface Pad 5571 Series |
| Manufacturer | 3M |
| Product Type | Thermally Conductive Acrylic Interface Pad |
| Base Material | Acrylic Elastomer |
| Filler | Thermally Conductive Ceramic Filler |
| Construction | Conformable Slightly Tacky Acrylic Elastomer |
| Available Thickness | 1.0 ± 0.05 mm / 1.5 ± 0.10 mm / 2.0 ± 0.10 mm |
| Thermal Conductivity | 2.1 W/m-K |
| Color | Yellowish White Core |
| Liner | Transparent Film Liner |
| Electrical Insulation | Good Electrical Insulation Properties |
| Dielectric Strength | 17 kV/mm |
| Volume Resistivity | 2.5 × 1014 Ω-cm |
| Hardness | 78 Shore 00 |
| Density | 1.9 g/cm³ @ 25°C |
| Flammability | UL94 V-0 |
| Conformability | Good Conformability to Non-Flat Surfaces |
| Surface | Slightly Tacky |
| Silicone | No Intentionally Added Silicone |
| Sheet Format | A4 / A5 / Custom |
| Converting | Die-Cutting / Custom Converting |
| Custom Shape | Available Based on Application Requirements |
| Custom Dimensions | Available Based on Customer Drawing or Requirement |
| 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.
Applications
EV Battery Thermal Management
Suitable for thermal interface applications between battery components and cooling plates in electric vehicle battery systems.
Power Electronics
Suitable for inverters, power supplies, power modules and electronic assemblies requiring heat transfer to cooling devices.
HMI Displays
Suitable for HMI and display assemblies where conformability and thermal management are required.
Electronic Control Units
Suitable for electronic control units and other assemblies where heat must be transferred from components to cooling structures.
LED Lighting Systems
Suitable for LED lighting assemblies where thermal management is required between heat-generating components and heat sinks.
Junction Boxes & Busbars
Suitable for selected electrical and power distribution assemblies requiring thermal management and electrical insulation.
Product Uses
3M™ Thermally Conductive Acrylic Interface Pad 5571 is designed to provide a preferential heat transfer path from heat-generating components to cooling devices such as aluminum plates and heat sinks.
The pad consists of a conformable, slightly tacky acrylic elastomer containing a thermally conductive ceramic filler. The soft construction helps the pad conform to uneven surfaces and fill interface gaps, supporting efficient thermal contact.
The material provides 2.1 W/m-K thermal conductivity and good electrical insulation properties. It is also UL94 V-0 listed, making it suitable for a range of electronic and industrial thermal management applications.
Typical applications include EV battery thermal management, battery cooling plates, power electronics, inverters, electronic control units, HMI displays, LED lighting systems, junction boxes and other electronic assemblies.
For custom applications, 3M 5571 can be converted into application-specific die-cut shapes. A4, A5 and custom sheet formats can be considered depending on the required application and converting process.
Custom die-cut parts can be produced according to customer dimensions, drawings, CAD files or sample components. Features such as holes, slots, cut-outs, corners and irregular geometries can be incorporated where suitable for the converting process.
For optimal thermal performance, the mating surfaces should be clean and dry. A suitable compression level is required to achieve good wet-out of the interface; 3M notes that the gap should allow approximately 10–20% compression for optimal wetting.
Custom Die-Cut Service
Custom Die-Cut Shapes
We can convert 3M™ Thermally Conductive Acrylic Interface Pad 5571 into custom shapes and geometries according to your application requirements.
A4 & A5 Sheets
3M 5571 thermal pad material can be supplied in A4, A5 and other sheet formats for prototyping, development and production requirements.
Custom Dimensions
Custom length, width and thickness requirements can be evaluated according to the required thermal interface area and application design.
Complex Geometries
Custom cut-outs, holes, slots, corners and irregular profiles can be incorporated into the thermal pad design where suitable.
Drawing & CAD Based
Die-cut components can be manufactured based on customer drawings, CAD files, dimensions or sample components.
Production Converting
Suitable for prototype, small-batch and high-volume production requirements with application-specific converting solutions.
Need Custom 3M 5571 Thermal Pads?
Contact us for A4/A5 sheets, custom die-cut thermal pads, application-specific dimensions, bulk requirements, converting and technical assistance.