Quote:
Originally Posted by tubesrule
Mass has nothing to do with terminal temperature. Mass will affect the rate of change of temperature, but thermal resistance is what determines the terminal temperature. Thermal resistance is affected by material, surface area and air flow. A larger mass will make it take longer to reach its final temperature, but that temperature will still be the same.
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But only in a hypothetical where the mass is totally insulated against radiative and convective cooling. In the real world, the larger mass, having greater radiative surface and more surface exposed to airflow, will end up running cooler than a smaller mass dissipating the same wattage. Seems like, anyhow.
OOPs. Electronic M already done it.