Does the Thickness of the Thermal Conductive Pad Affect the Heat Dissipation Effect?

VRM thermal pad

The thickness of the thermal conductive pad has an impact on the heat dissipation effect. Generally speaking, the thinner the thermal conductive pad, the better the heat dissipation effect. This is because the thinner the thermal conductive pad, the shorter the path for heat transfer, thereby reducing thermal resistance. However, if the thermal conductive pad is too thin, it may cause uneven pressure distribution and reduced contact area, which will also affect the heat dissipation effect. Therefore, when choosing a thermal conductive pad, it is necessary to choose an appropriate thickness according to the specific situation.

Although the thermal conductivity belongs to the physical properties of the thermal conductive pad, it only depends on the material of the silicone gasket itself, and will not be affected by the thickness, current situation, etc. However, the thermal resistance increases with the increase of the thickness, which ultimately directly affects the thermal conductivity. Therefore, considering only the heat conduction effect, in the case of the same thermal conductivity, it is actually better to be thinner.

The reason why the thermal conductive pad is in the market is because it has the characteristics that the thermal conductive pad cannot have, such as shockproof and easy to fill. If you need to make the thermal conductive pad play a certain shockproof effect, you can choose a relatively thicker product. In addition, the distance between the two contact surfaces is also decisive.

Therefore, in the purchase of thermal conductive pad, you should choose according to your actual needs. At present, AOK thermal conductive pad generally provide a variety of options. For example, the hot-selling thermal conductive pad in Europe are currently on sale in 5 thicknesses of 0.5mm, 1mm, 1.5mm, 2mm, and 3mm, and they are matched with -40°C to 220°C The ultra-wide working temperature ensures non-conductivity and non-corrosion, suitable for various scenarios.

If you would like to learn more about AOK performance thermal materials, please visit our website at

Updated on:2023-07-10 10:15:45
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