When I come across a burnt resistor, I usually replace it with onerated for twice the wattage as the original, but I was told it'ssometimes bad to do that. Why? I'm not referring to fuse resistorsbut ordinary carbon composition resistors.

Sometimes, ordinary resistors ARE used as fusable. Anything to save a cent, or a fraction of a cent anyway.-- Abandon all hope ye who have entered cyberspace.

messagenews:---What do you mean by "TH"?-- JF

Higher wattage for a resistor ever bad?

Aug 17, 2011 42 Replies

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John Fields 14 years ago

messagenews: snipped-for-privacy@cf8g2000vbb.googlegroups.com...

What do you mean by "TH"?

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Phil Allison 14 years ago

"John Fields"

** Through Hole.

Dear, oh dear .....

.... Phil

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=?ISO-8859-1?Q?Teodor_V=E4=E4n 14 years ago

And from what I've understood, there isn't a clear standard as to how metal films are marked as opposed to carbon films, so you would have to know what resistor manufacturer the equipment manufacturer used in order to be able to tell what type is in the device. You can deduce some from the application as well as tolerance, but it's by no means a sure-fire way.

Just my $.02 worth,

/Teo.

Teodor Väänänen | Don't meddle in the affairs of wizards, teostupiditydor@algonet.se | for you are good and crunchy with Remove stupidity to reply | ketchup.

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