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Analog servo

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be80be

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I can't for the life of me figure what the heck is going on here. I used these before not any problems today they run foe a bit and burnt up the part in the picure
I think its cap but maybe not.
They where wired up right.
20160815_202829.jpg
 

spec

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Most Helpful Member
Looks like a tantalum electrolytic capacitor that has suffered thermal runaway- a not uncommon event.

spec
 

Tony Stewart

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Most Helpful Member
Depending on fault condition My guess is that ripple current was excessive if the servo load was high. Ensure the voltage rating has extra margin for back EMF and very low ESR.
 

be80be

Well-Known Member
Well I know it was wired right that's for sure but I used a new power Supply
And it showed 5.19 volts but it looked like with my scope that it's was letting ac by so with my dvm I was getting almost 9 volts AC too I most times use a old cell phone one that was rated for 800 mA but couldn't find it last night. And used a new one that came in a starter kit for my PI.
Well I think I have this figured out when the motor pined to the stop it drew to much current and the 2 amp 5 volt supply let them have it LOL .
 
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