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Calculator of thermal resistance of ferrite cores

Some authors suggest that an empirical equation can be used as a first approximation of the thermal resistance of ferrite cores.

If the value of the core volume is used in cm3 then the thermal resistance can be calculated in (K/W):

(1) Maniktala fomula for thermal resistance
$$ R_{th} = 53 · (V_{core})^{-0.54} $$ (K/W)
after Sanjaya Maniktala, Switching power supplies A-Z, 2nd edition, Newnes, 2012, ISBN 978-0-12-386533-5, p. 155

Vcore =

      Estimated Rth (K/W) =

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calculator/thermal_resistance_of_ferrite_cores.txt · Last modified: 2023/06/17 22:17 by

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