Help me

[v b chil-n]

I need to locate 6.3v 470uf caps in a 6.3x8mm max 10mm size. The best I could find so far is on ebay Can anyone point me to a better source.

[mariushm]

Re: Help me

As you're in florida, probably the best store for you would be Digikey: http://www.digikey.com

Other good stores:

Mouser : http://www2.mouser.com/Home.aspx
RS Components: http://www.rs-components.com
Farnell : http://www.farnell.com/

PS. This site also sells capacitors, you might want to check the main pages first.

[v b chil-n]

Re: Help me

As you're in florida, probably the best store for you would be Digikey: http://www.digikey.com

Other good stores:

Mouser : http://www2.mouser.com/Home.aspx
RS Components: http://www.rs-components.com
Farnell : http://www.farnell.com/

PS. This site also sells capacitors, you might want to check the main pages first.

Yes I'm in FL. Digikey and Mouser have noting in that size (dimension) I will check the other links you provided. Thanks

[v b chil-n]

Re: Help me

Would a surface mount cap work if I can get it soldered in place?

[ipman]

Re: Help me

Yes, if it's the same spec as the through-the-hole version.

[PCBONEZ]

Re: Help me

Yes I'm in FL. Digikey and Mouser have noting in that size (dimension) I will check the other links you provided. Thanks

You are mistaken.

[v b chil-n]

Re: Help me

You are mistaken.

how so?

[jsog]

Re: Help me

Probably he means that Digikey does have 470uf 6.3v caps in 6.3x8mm. There are nice UCC and Nichicon polymers.

[v b chil-n]

Re: Help me

Probably he means that Digikey does have 470uf 6.3v caps in 6.3x8mm. There are nice UCC and Nichicon polymers.

I thought when replacing a electrolytic with a polymers that the specs would have to be different on the polymer? also this is not for a motherboard so would a polymer even work?

[v b chil-n]

Re: Help me

FYI this is what I'm trying to replace

[jsog]

Re: Help me

What brand, series, and lead spacing are those?

[PCBONEZ]

Re: Help me

I thought when replacing a electrolytic with a polymers that the specs would have to be different on the polymer?

No.
The specs should be as close to original as you can get ...
... unless you've traced out the circuit to figure out what it does and done the electronic math the see what you would be changing.
-

also this is not for a motherboard so would a polymer even work?

The cap doesn't know what the PCB is, it only knows the circuit it is in.
-

-
There are places where changing uF is bad.
There are places where changing ESR is bad.
There is no magic Poly-ESR conversion/swap rule that works on every kind of circuit.

There are people that have 'done the math' for various kinds of circuits so many times they will have a good idea what will work just by looking at what the circuit does. That is especially true on motherboards both because lytic-poly modding is more popular there [more people do it] and because motherboards really don't have a wide variety of -kinds- of circuits that caps are used in.
-
When it's not a mother board it might not be one of those -kinds- of circuits and fewer people will have done it.
That means you should either:
- stay with the original specs
- trace out the circuit and do the math
- or provide details about what the circuit is/does.

All you've given us is uF/Volts/dimensions.
That's not enough information to choose an appropriate cap for an application so no one here can tell you for certain if some replacement cap will work or not.
.

[jsog]

Re: Help me

The brand and series might be shown on the back side of the caps, not shown in the picture.

[v b chil-n]

Re: Help me

What brand, series, and lead spacing are those?

Ketuo 6.3v 470uf, I'm not sure of the spacing.

[jsog]

Re: Help me

There might be a letter code for the series of capacitor on them somewhere. Lead spacing can be measured from the bottom of the board, center to center of the pins.

[PCBONEZ]

Re: Help me

Let me guess. - This is a Diablotek video card?
.
Ketuo is a small company that doesn't bother with things like websites or minor details like data sheets.
Really doubtful their caps have decent specs.
[This is when an ESR meter comes in handy.]
I'm guessing those are no better than panny FC. - If that good.
A 6.3x8mm lytic from a crap brand just isn't going to have that low of an ESR.
.
A good pic of the whole card would help.
.
Do any of the caps look like they have coils in the circuit?
Do any look like they are an integral part of a VR.
.
Looks like a basic low-end card.
You could shot-gun this with about any good brand 'entry level' low ESR cap with a pretty good chance of it working out fine.

With those caps on it to start with it's not at the 'performance level' where using polymer is worth the cost or effort.
.
Do all the caps have room for an 8mm diameter like the two shown?
.

[PCBONEZ]

Re: Help me

These ~should~ work. Having not seen the card I'm not making any promises though.

6.3mm
http://search.digikey.com/scripts/Dk...me=565-1875-ND

8mm
http://search.digikey.com/scripts/Dk...me=565-1501-ND

8mm that's probably serious over-kill to replace those particular caps.
http://search.digikey.com/scripts/Dk...name=P12361-ND
.

[v b chil-n]

Re: Help me

PCBONEZ and jsog

Thanks for the info. I will try to get a full shot of the circuit board but I'm at work at the moment.
The item in question is a touch screen thermostat, sorry PC you guessed wrong . Two of the five caps are side by side and in a cramped spot so a 8mm will not even fit but the others have a little wiggle room.. Stay tuned for the pics when I get home in the morning.

[v b chil-n]

Re: Help me

As promised here is the pic of the entire board



jsog the caps have no other markings except for what I have already posted and the temperature rating which is -40+105 C. I checked each one and nada

[PCBONEZ]

Re: Help me

Are those KZE original because they are laying on SMD parts and don't look like they should be there.
Also doubt that board has 50v on it anywhere.
I'm thinkin' someone used whatever they had laying around.

Looking at it I think for the caps you asked about I would try the LXZ.
http://search.digikey.com/scripts/Dk...me=565-1875-ND
.