Thermal conductivity is a critical factor to consider when selecting a thermal pad, as it determines how effectively heat is transferred from the heat source (e.g., CPU) to the heat sink. The higher the thermal conductivity, the better the heat transfer. Here is some information about the thermal conductivity levels of thermal pads:

Graphite-based Pads

Graphite pads typically offer high thermal conductivity levels, ranging from around 1000 ~ 1500 W/m.K or even higher. Graphite is known for it's excellent thermal conductivity properties, making it an ideal choice for applications that require efficient heat dissipation.

Ceramic-based Pads

Ceramic pads also provide good thermal conductivity, typically ranging from 3 ~ 20 W/m.K. While ceramic pads may not match the thermal conductivity of graphite-based pads, they still offer effective heat transfer capabilities, especially in high-temperature environments.

Silicone-based Pads

Silicone pads generally have lower thermal conductivity compared to graphite and ceramic pads, typically ranging from 1 ~ 12 W/m.K. However, silicone pads are still suitable for many electronic applications and offer reliable thermal performance.

Metal-based Pads

Metal-based pads, such as aluminum or copper pads, can provide high thermal conductivity due to the inherent properties of the metal. The thermal conductivity of metal-based pads can range from 100 ~ 400 W/m.K or higher, depending on the specific material used.

That these ranges are approximate and can vary depending on the specific formulation and thermal material manufacturer of the thermal pads. When selecting a thermal pad, consider the thermal conductivity requirements of your application, as higher thermal conductivity is generally desirable for better heat transfer. However, other factors like durability, electrical insulation properties, and compatibility with your specific components should also be taken into account.

If you would like to learn more about AOK performance thermal materials, please visit our website at www.aok-technologies.com