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What is thermal resistance? Which is more important, thermal resistance or thermal conductivity?

2026-08-31

Thermal resistance is a comprehensive indicator that measures a material's ability to impede heat transfer, and its unit is °C/W. Thermal conductivity is an inherent property of a material, and its unit is W/m·K. For the final heat dissipation effect, thermal resistance is more important in practical applications because it includes a variety of factors such as the contact surface and the material itself.

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What is thermal resistance? Which is more important, thermal resistance or thermal conductivity?