Electronics > Projects, Designs, and Technical Stuff
Running inductor very hot: DT (°C) = 120
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coppercone2:
how does that kind of connection break when its soldered? Do the solder bits flake off from the aluminum and leave a open circuit?

would anneling the wire of the inductor before soldering help?
T3sl4co1l:
No idea. I would guess the Al-Cu interface layer is brittle and can be prone to peeling apart, especially with corrosion (2000 series copper-based aluminum alloys are notoriously not very corrosion resistant).  Thickness of the intermetallic layer will depend on how it was prepared in the first place, and how hot it's gotten, because diffusion.  Also, solder is prone to creep, as is the soft aluminum core, making it difficult to secure.

Tim
coppercone2:
this seems like a bad idea
james_s:
CCA is garbage. It's cheaper but it has 3X the resistance. Unless you need huge quantities the price difference is just not that significant.
fsr:
I thinked that electronic loads were mostly constant current linear regulators. What's the function of the big inductor running at such temperatures?
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