Encyclopedia Magnetica™

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Calculator of maximum power loss from thermal resistance

Stan Zurek, Calculator of maximum power loss from thermal resistance, Encyclopedia Magnetica,
http://e-magnetica.pl/doku.php/calculator/maximum_loss_from_thermal_resistance, {accessed: 2025-03-14}

If thermal resistance is known for given device and cooling conditions then a maximum loss dissipation can be calculated from the following equation.

$$ P_{max} = \frac{T_{max} - T_{ambient}}{R_{th}} $$

(W)

Note: the maximum temperature must be greater than the ambient value.