Author Topic: 10v capacitor in a 16v spot?  (Read 225 times)

elenore19

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10v capacitor in a 16v spot?
« on: September 17, 2017, 09:30:57 PM »
All the projects seem to say 16v minimum on the capacitors.
Can I get away with putting two 10V electros in a pedal? (100uf value, Mandroid project)

pickdropper

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Re: 10v capacitor in a 16v spot?
« Reply #1 on: September 17, 2017, 09:54:21 PM »
It depends on how much voltage is on the cap at that point in the circuit.  If it's in the power supply and they are seeing 9V, it's not a good idea.
Etymotic Research, Function f(x)

elenore19

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Re: 10v capacitor in a 16v spot?
« Reply #2 on: September 17, 2017, 10:10:32 PM »
How do I find out if that's the case? Or is it not worth the risk in general.

WormBoy

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Re: 10v capacitor in a 16v spot?
« Reply #3 on: September 18, 2017, 03:12:29 AM »
All the projects seem to say 16v minimum on the capacitors.
Can I get away with putting two 10V electros in a pedal? (100uf value, Mandroid project)
Are you talking about C10 and C11 in the Mandroid? Those two only see a maximum of 3.6V each: the 9V is used in a split manner (it's a bit non-standard, check out the schematic), and the Zener diodes should limit what each cap gets to 3.6V max. So, 10V should be sufficient margin of safety.

elenore19

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Re: 10v capacitor in a 16v spot?
« Reply #4 on: September 19, 2017, 08:52:43 AM »
Are you talking about C10 and C11 in the Mandroid? Those two only see a maximum of 3.6V each: the 9V is used in a split manner (it's a bit non-standard, check out the schematic), and the Zener diodes should limit what each cap gets to 3.6V max. So, 10V should be sufficient margin of safety.
Those were the caps I was talking about. Thanks a bunch for the info, hopefully someday I can get the knowledge of figuring that out by myself.

Thanks again!