Instruction manual
The 3M 8940 Thermally Conductive Adhesive Tape is an acrylic pressure‑sensitive tape designed to transfer heat from electronic components to heat sinks while also acting as a dielectric insulator. Its unfilled high‑temperature resistant adhesive and highly filled carrier give durability, compliance at elevated temperatures, and easy die‑cutting for custom shapes.
Key features include excellent thermal conductivity, high dielectric strength, and the ability to replace grease, mica sheets, or fasteners. Typical applications span automotive electronics, computers, set‑top boxes, televisions, and mobile devices where efficient thermal management is required.
| Effective Thermal Conductivity | 0.63 W/(m·K) |
|---|---|
| Thermal Impedance | 3.64 C·cm²/W |
| Breakdown Voltage | 12 kV |
| Dielectric Strength | 50 kV/mm |
| Volume Resistivity | 3.0 × 10¹⁵ Ω·cm |
| Dielectric Constant (50‑60 Hz) | 277 |
It is 0.63 W/(m·K) as listed in the product specifications.
Typical applications include thin bonding for CPUs, flex circuits, power transformers, gap‑filling for plasma displays, IC packages, and PCB bonding to heat sinks in automotive electronics, computers, set‑top boxes, and mobile devices.
Key features are an unfilled high‑temperature resistant acrylic adhesive for durability, a highly filled carrier for excellent heat transfer, dielectric insulation, easy die‑cutting, and the ability to replace grease, mica sheets, and fasteners.