Re: What happens when you over current an inductor?

John_H wrote:

Rene Tschaggelar wrote:

First at reaching the current specification its
inductivity decreases as it becomes saturated.
At further increase of the current over the
specification, it becomes warm, then hot until
a solder joint melts. The inductivity is lower
than expected at overcurrent.
You cannot permanently damage an inductor,
except by damaging the insulation and the solder
joints. Meaning the media, usually ferrite doesn't
care.

Rene


But won't there be troubles when the temperature exceeds the curie temp? I may be getting my cores mixed up with the rare earth magnets I work with.

The permeability will still be there because of the raw material; what happens to the properties of the core if it becomes magnetized?

Inductor cores are magnetically soft, so they shouldn't retain any magnetism.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

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