Question on voltage of electrolytic cap

D

Dave

Guest
Would it hurt anything to replace an alectrolytic cap (high temp, if that
matters) with one of the same value (220uF) but a higher voltage rating?
Seems like it wouldn't, but I thought I'd ask...

Thanks,

D
 
In article <etedncXr0t8n3WrVnZ2dnUVZ_hCdnZ2d@posted.internetamerica>,
Dave <db5151@hotmail.com> wrote:
Would it hurt anything to replace an alectrolytic cap (high temp, if
that matters) with one of the same value (220uF) but a higher voltage
rating? Seems like it wouldn't, but I thought I'd ask...
Click to expand...
No - if there's space for it. They're bigger, like for like.

--
*Reality? Is that where the pizza delivery guy comes from?

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.
 
"Dave Plowman (News)" <dave@davenoise.co.uk> wrote in message
news:4fef3062efdave@davenoise.co.uk...
In article <etedncXr0t8n3WrVnZ2dnUVZ_hCdnZ2d@posted.internetamerica>,
Dave <db5151@hotmail.com> wrote:
Would it hurt anything to replace an alectrolytic cap (high temp, if
that matters) with one of the same value (220uF) but a higher voltage
rating? Seems like it wouldn't, but I thought I'd ask...

No - if there's space for it. They're bigger, like for like.

--
*Reality? Is that where the pizza delivery guy comes from?

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.
Click to expand...
Thank you, Dave. :)

Yeah, the 50V is more than twice the size of the 35V, and may not fit. But
it's all I seem to be able to find for that value and high temp.

'preciate it.

Dave
 
"Dave" <db5151@hotmail.com> wrote in
news:etedncXr0t8n3WrVnZ2dnUVZ_hCdnZ2d@posted.internetamerica:

Would it hurt anything to replace an alectrolytic cap (high temp, if
that matters) with one of the same value (220uF) but a higher voltage
rating? Seems like it wouldn't, but I thought I'd ask...

Thanks,

D
Click to expand...
nothing,if the physical size of the new cap fits in the space of the old
cap.
Mind your ESR requirements.
Switcher power supplies need low-ESR caps.

--
Jim Yanik
jyanik
at
kua.net
 
In theory, if the cap has a voltage rating much higher than the actual
circuit voltage (say, a 100V cap in a 50V DC circuit), the capacitor is more
likely to deform.

That's the theory. I've never seen any systematic study of it. Anyone know
"fer shure"?
 
"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9B397C1D97495jyanikkuanet@74.209.136.86...
"Dave" <db5151@hotmail.com> wrote in
news:etedncXr0t8n3WrVnZ2dnUVZ_hCdnZ2d@posted.internetamerica:

Would it hurt anything to replace an alectrolytic cap (high temp, if
that matters) with one of the same value (220uF) but a higher voltage
rating? Seems like it wouldn't, but I thought I'd ask...

Thanks,

D




nothing,if the physical size of the new cap fits in the space of the old
cap.
Mind your ESR requirements.
Switcher power supplies need low-ESR caps.

--
Jim Yanik
jyanik
at
kua.net
Click to expand...
Thank you, Jim. Any ideas on how I can determine what the ESR of a cap is?
Seriously, I know this matters, but have no idea as to how to apply the
question. Maybe Google... Just a thought.

'preciate it.

dave
 
"Dave" <db5151@hotmail.com> wrote in
news:pZGdnT5X-4P4m2XVnZ2dnUVZ_qHinZ2d@posted.internetamerica:

"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9B397C1D97495jyanikkuanet@74.209.136.86...
"Dave" <db5151@hotmail.com> wrote in
news:etedncXr0t8n3WrVnZ2dnUVZ_hCdnZ2d@posted.internetamerica:

Would it hurt anything to replace an alectrolytic cap (high temp, if
that matters) with one of the same value (220uF) but a higher
voltage rating? Seems like it wouldn't, but I thought I'd ask...

Thanks,

D




nothing,if the physical size of the new cap fits in the space of the
old cap.
Mind your ESR requirements.
Switcher power supplies need low-ESR caps.

--
Jim Yanik
jyanik
at
kua.net

Thank you, Jim. Any ideas on how I can determine what the ESR of a
cap is? Seriously, I know this matters, but have no idea as to how to
apply the question. Maybe Google... Just a thought.

'preciate it.

dave
Click to expand...
Dick Smith Electronics used to sell an inexpensive ESR meter kit(I have
one,love it),Anatek may still carry them. around $50 USD.

you could probably look up the manufacturer's specs on their website.

--
Jim Yanik
jyanik
at
kua.net
 
"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9B3A655A1467Ejyanikkuanet@74.209.136.85...
"Dave" <db5151@hotmail.com> wrote in
news:pZGdnT5X-4P4m2XVnZ2dnUVZ_qHinZ2d@posted.internetamerica:


"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9B397C1D97495jyanikkuanet@74.209.136.86...
"Dave" <db5151@hotmail.com> wrote in
news:etedncXr0t8n3WrVnZ2dnUVZ_hCdnZ2d@posted.internetamerica:

Would it hurt anything to replace an alectrolytic cap (high temp, if
that matters) with one of the same value (220uF) but a higher
voltage rating? Seems like it wouldn't, but I thought I'd ask...

Thanks,

D




nothing,if the physical size of the new cap fits in the space of the
old cap.
Mind your ESR requirements.
Switcher power supplies need low-ESR caps.

--
Jim Yanik
jyanik
at
kua.net

Thank you, Jim. Any ideas on how I can determine what the ESR of a
cap is? Seriously, I know this matters, but have no idea as to how to
apply the question. Maybe Google... Just a thought.

'preciate it.

dave



Dick Smith Electronics used to sell an inexpensive ESR meter kit(I have
one,love it),Anatek may still carry them. around $50 USD.

you could probably look up the manufacturer's specs on their website.

--
Jim Yanik
jyanik
at
kua.net
Click to expand...
Why, *thank you*. Will check out said kit, and Anatek as well. Much
appreciated.

Dave
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top