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Home Forums 68kMLA Tolerances for capacitor replacement: electronics query — #4
Post #4 by wally
Source Forum68kMLA
CategoryTroubleshooting
Post DateSun, 21 Oct 2007 - 06:43
Original URLhttps://68kmla.org/bb/threads/tolerances-for-capacitor-replacement-electronics-query.10358/
Post
...Make sure to ...install an electrolytic capacitor in the correct orientation...
There are exceptions but interestingly the aluminum electrolytics tend have the negative terminals marked with a graphic symbol and the tantalums tend to have the positive terminal marked with a graphic symbol. Count yourself lucky if the symbol is a clear + or -. Do not assume that that bar marking on the end of an SMT tantalum is a long negative sign! Being wrong results in a fried part immediately when power is applied, sometimes explosively. Be careful, and check the data sheet if in doubt, or do a bench test with an extra part!

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