What Is the Relationship between Thermal Conductivity and Thickness of Electrical Insulation Sheet?
- Posted on：2023-04-28 14:04:00
- Source：AOK Thermal Pad Manufacturer FAQs
The thermal conductivity of the electrical insulation sheet refers to the ability to transfer heat from one side of the electrical insulation sheet to the other side per unit time. The higher the thermal conductivity of the electrical insulation sheet, the stronger the thermal conductivity of the electrical insulation sheet. The thickness of the electrical insulation sheet also has a certain influence on the thermal conductivity. Generally, the thicker the electrical insulation sheet, the lower the thermal conductivity.
Because the increase in the thickness of the electrical insulation sheet will increase the heat transfer path, resulting in an increase in the resistance of heat transfer, thereby reducing the thermal conductivity. (In electronic components, thermal impedance is an important parameter that helps designers determine the heat dissipation requirements of a component to ensure that the component does not overheat during operation.), therefore when selecting a electrical insulation sheet, it is necessary to comprehensively consider factors such as the thickness and thermal conductivity of the electrical insulation sheet according to the specific heat dissipation requirements and design requirements.
Compression of the electrical insulation sheet has an effect on thermal conductivity because compression increases the density of the thermal pad, resulting in a shorter heat conduction path and an increase in the rate of heat transfer. In addition, compression eliminates possible voids in the electrical insulation sheet, further improving heat transfer efficiency. Therefore, if you need to use electrical insulation sheet in thermal management applications, please pay attention to the compression characteristics of the thermal pad material and choose the appropriate compression force to achieve the best thermal performance.
If you would like to learn more about AOK performance thermal materials, please visit our website at www.aok-technologies.com.