App note: An introduction to inductor specifications

Coilcrafts’s app note on inductor and more to it than just inductance. Link here (PDF)

There is more to selecting an inductor than the nominal inductance value. To ensure the inductor will perform as needed in a specific application, due consideration must be given to inductance tolerance, current ratings, DCR, maximum operating temperature and efficiency at specific operating conditions. Even the inductance value needs careful consideration, as inductance itself is dependent on frequency, temperature, and current.

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