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calculator:thermal_resistance_of_ferrite_cores

Calculator of thermal resistance of ferrite cores

Stan Zurek, Calculator of thermal resistance of ferrite cores, Encyclopedia Magnetica,
http://www.e-magnetica.pl/doku.php/calculator/thermal_resistance_of_ferrite_cores, {accessed: 2025-02-19}

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
Source: [1] Sanjaya Maniktala, Switching power supplies A-Z, 2nd edition, Newnes, 2012, ISBN 978-0-12-386533-5, p. 155
[1], p. 155 (no eq. number) $$ R_{th} = 53 · (V_{core})^{-0.54} $$ (K/W)

Vcore =

      Estimated Rth (K/W) =

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calculator/thermal_resistance_of_ferrite_cores.txt · Last modified: 2025/01/19 01:26 by stan_zurek

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