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Thread: TO-220 heatsinking: THANKS!
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face BY : Trevor Page email (remove spam text)



Hi all,

I'd just like to say many thanks to those who have offered advice on the
heatsinking issue. Some very interesting points have been made, and no doubt
I shall now redesign the board to make room for some heatsinks. The point
about the extra mechanical support they offer is a good one too (it gets a
right pain when the TO220 packages start to bend around and fall off after
you've handled the board a few times...)

So for future heatsink calculations, I suppose the best approach is to
actually make some temp measurements inside the enclosure under extreme
conditions e.g. under a spotlight or something, and use that as your Ta?
Hey, this thermometer I've had on my 15yr old Casio watch may come in useful
after all...

Trev


Trev


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<9D262C5FCA25D411BB4900508BA54EAA03653701@exchange-b.saltaire.pace.co.uk>

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Subject (change) TO-220 heatsinking: THANKS!

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