From: "Lukas Louw"
References: <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com> <2DJz9.firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com>
Subject: Re: Question about linear derating factor for MOSFETs
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NNTP-Posting-Date: Mon, 11 Nov 2002 23:53:53 GMT
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Date: Mon, 11 Nov 2002 23:53:53 GMT
www.skycraftsurplus.com for 600 watt 4 ohm resistors at US$5 a
pop............. Doesn't get any cheaper, I just got 20 of them to rebuild
my aging loadbanks.
Hope that helps,
> >>> Actually it's been my experience that bolt-mount power resistors,
> >>> whether 100W, 2x 50W or whatever, are much more expensive than the
> >>> equivalent rated power transistor. However, they are more robust.
> Yea, I was thinking about that. At $0.60 each, 10W rectangular
> wirewound resistors could work price-wise. But, I'd need a bunch of
> them and they'd have to be held together with thermal grease between
> each one of them and the heat sink....might be more trouble than it's
> worth considering the time and innacuracies involved (the MOSFET is
> $52). Still think it's a good idea, but it may not work out for my