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Message from discussion 0805 size high power resistors, 250mW ok on FR-4?
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Jim Thompson  
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  More options Jul 24, 5:44 am
Newsgroups: sci.electronics.design
From: Jim Thompson <To-Email-Use-The-Envelope-I...@My-Web-Site.com>
Date: Wed, 23 Jul 2008 14:44:16 -0700
Local: Thurs, Jul 24 2008 5:44 am
Subject: Re: 0805 size high power resistors, 250mW ok on FR-4?
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On Wed, 23 Jul 2008 14:18:34 -0700, Joerg

<notthisjoerg...@removethispacbell.net> wrote:
>John Larkin wrote:

>[ FLIR camera ]

>> It's also cool for troubleshooting. Suppose a power rail is collapsed.
>> You can often image the board and find the part that's hogging the
>> power. Or add another power supply, force a few amps, and image the
>> traces.

>I just donated it to a client but in the days when that still happened a
>lot I used a >10A power supply for that. Crank it up ... *WHADDABAM* ...
>aha, t'was that high-faluting PWM driver again. Only with eye
>protection, of course. Sometimes all it takes is a D-cell.

>[...]

I used to "cure" pin-hole shorts in alumina thick-film hybrids with a
5V/100A supply... rarely did anything more than just go "click" ;-)

                                        ...Jim Thompson
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