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AnswerRe: Question for the non-U.S. folks Pin
Member 79891223-Nov-19 20:27
MemberMember 79891223-Nov-19 20:27 
JokeThe police just showed up and took my dog! Pin
Johnny J.30-Oct-19 3:52
professionalJohnny J.30-Oct-19 3:52 
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CodeWraith30-Oct-19 4:41
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GeneralRe: The police just showed up and took my dog! Pin
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GeneralRe: The police just showed up and took my dog! Pin
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j snooze30-Oct-19 11:41
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GeneralTantalum! Pin
CodeWraith30-Oct-19 3:26
MemberCodeWraith30-Oct-19 3:26 
I need to buy a few tantalum capacitors for a serial port (together with a MAX232 RS232 driver). When reading up on ceramic or Tantalum capacitors, I stumbled over this:

Quote:
With a reverse voltage applied, a reverse leakage current flows in very small areas of microcracks or other defects across the dielectric layer to the anode of the electrolytic capacitor. Although the current may only be a few microamps, it represents a very high localized current density which can cause a tiny hot-spot. This can cause some conversion of amorphous tantalum pentoxide to the more conductive crystalline form. When a high current is available, this effect can avalanche and the capacitor may become a total short.
This tempts me to experiment with Tantalum capacitors a little. As far as I know, they don't explode when they short out. They go up in flames. How long does this take? Is reverse polarity of the standard voltage enough or does it take a little more?

The Huey might get firing rockets after all. Smile | :)
I have lived with several Zen masters - all of them were cats.

His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

GeneralRe: Tantalum! Pin
Slacker00730-Oct-19 3:36
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GeneralRe: Tantalum! Pin
glennPattonWork30-Oct-19 3:39
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GeneralRe: Tantalum! Pin
CodeWraith30-Oct-19 3:44
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GeneralRe: Tantalum! Pin
CodeWraith30-Oct-19 3:51
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GeneralRe: Tantalum! Pin
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GeneralRe: Tantalum! Pin
CodeWraith30-Oct-19 3:48
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GeneralRe: Tantalum! Pin
glennPattonWork30-Oct-19 4:53
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GeneralRe: Tantalum! Pin
CodeWraith30-Oct-19 5:00
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GeneralRe: Tantalum! Pin
CPallini30-Oct-19 4:25
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GeneralRe: Tantalum! Pin
CodeWraith30-Oct-19 4:33
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GeneralRe: Tantalum! Pin
Rick York30-Oct-19 5:47
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Rick York30-Oct-19 6:00
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Ron Anders30-Oct-19 6:19
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GeneralPuzzle Me This Pin
W Balboos, GHB30-Oct-19 1:08
mveW Balboos, GHB30-Oct-19 1:08 
GeneralRe: Puzzle Me This Pin
Slacker00730-Oct-19 1:36
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GeneralRe: Puzzle Me This Pin
W Balboos, GHB30-Oct-19 1:45
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GeneralRe: Puzzle Me This Pin
Gary Wheeler30-Oct-19 6:36
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