3M™ Thermally Conductive Heat Spreading Tape 9876-10

High-Performance Thermal Management & Heat Spreading Tape

3M™ Thermally Conductive Heat Spreading Tape 9876-10 is designed to provide excellent heat spreading performance in the X-Y plane while maintaining electrical insulation. The tape uses a copper-based heat spreading construction with a high-performance acrylic adhesive for reliable bonding to surfaces such as aluminum and stainless steel.

Key Features

Excellent in-plane thermal conductivity of approximately 250 W/m-K for efficient heat spreading.
Designed to create a preferential X-Y heat transfer path for uniform thermal distribution.
Low thermal impedance helps transfer heat away from heat-generating components.
High-performance acrylic adhesive provides reliable adhesion to aluminum and stainless steel.
Excellent electrical insulation with a dielectric strength of approximately 2.9 kV.
Flexible and easy to process, handle and die-cut for demanding electronic applications.

Product Highlights

250 W/m-K X-Y Thermal Conductivity

Provides high thermal conductivity in the X-Y plane to efficiently spread heat away from heat-generating components.

Selective Heat Spreading

Creates a preferential thermal spreading path for uniform heat distribution across the desired plane.

Electrical Insulation

Provides excellent electrical insulation with a dielectric strength of approximately 2.9 kV.

Low Thermal Impedance

Designed to support efficient thermal transfer and rapid heat spreading from heat-generating electronic components.

Reliable Adhesion

High-performance acrylic adhesive provides reliable adhesion to aluminum and stainless steel surfaces.

Easy Processing

Flexible construction offers easy workability, handling and die-cutting for customized thermal management designs.

Product Construction

3M™ Thermally Conductive Heat Spreading Tape 9876-10 is a thermally conductive heat spreading tape designed to move and distribute thermal energy primarily along the X-Y plane. The construction incorporates a copper heat-spreading layer with a high-performance acrylic adhesive system.

The tape construction provides a preferential heat transfer path while maintaining electrical insulation. Its thin profile and flexible construction make it suitable for applications where space is limited and efficient heat distribution is required.

The adhesive is designed to provide reliable bonding to surfaces including aluminum and stainless steel. The tape can also be processed and die-cut to suit specific component and assembly requirements.

Specifications

Product Name	3M™ Thermally Conductive Heat Spreading Tape 9876-10
Product Series	3M™ Thermally Conductive Heat Spreading Tape 9876
Product Number	9876-10
3M ID	7000008596
UPC	00051115526503
Product Type	Thermally Conductive Heat Spreading Tape
Adhesive Type	High-Performance Acrylic
Heat Spreading Layer	Copper
Total Tape Thickness	0.1 mm / 3.9 mil
X-Y Thermal Conductivity	> 250 W/m-K
Z-Axis Thermal Conductivity	0.80 W/m-K
Thermal Impedance	0.30 °C-in²/W
Dielectric Strength	2.9 kV / 0.1 mm
90° Peel Adhesion - Initial	> 1.0 kg / 12.7 mm width
90° Peel Adhesion - Heat Aged	> 2.5 kg / 12.7 mm width
Static Shear at Room Temperature	PASS
Static Shear at 70°C	PASS
Typical Roll Size	500 mm × 50 m
Application Surface	Aluminum and Stainless Steel (SUS)
Processing	Flexible, Easy Handling & Die-Cuttable
Electrical Property	Excellent Electrical Insulation
Storage Shelf Life	24 Months from Date of Manufacture*

* Shelf life is based on storage in the original cartons at approximately 21°C (70°F) and 50% relative humidity. Technical values are typical/representative and should not be used as specification limits.

Resources

Technical Data Sheet

View or download the technical data sheet for 3M™ Thermally Conductive Heat Spreading Tape 9876-10.

View TDS

Applications

LED Thermal Management

Suitable for heat distribution and thermal management in LED modules and LED boards where efficient planar heat spreading is required.

Electronic Components

Designed to spread heat generated by electronic components and provide a preferential thermal transfer path.

Flat Panel Displays

Suitable for heat spreading sheets in FPD applications where thin construction and space efficiency are important.

Small Displays

Suitable for thermal management of compact LCD and OLED display assemblies with space-constrained designs.

COF Chip Thermal Management

Can be used for chip-on-film thermal management where uniform temperature distribution and planar heat spreading are required.

Compact Electronics

Useful in thin and space-constrained electronic assemblies requiring efficient heat spreading and electrical insulation.

Product Uses

3M™ Thermally Conductive Heat Spreading Tape 9876-10 is designed to distribute thermal energy from heat-generating components toward designated cooling areas. Its high X-Y thermal conductivity creates a preferential heat-spreading path for more uniform temperature distribution.

The tape is particularly suitable for applications such as LED modules and boards, COF chip thermal management, flat panel displays and compact LCD and OLED devices. Its thin, flexible construction can help address thermal management challenges in space-constrained electronic designs.

The combination of thermal spreading performance, electrical insulation, flexibility and reliable adhesion makes 9876-10 suitable for demanding electronics and thermal management applications.