Capacitance vs Voltage Dilemma.

[deckart]

Hello chaps!,
I have a shed load of Imac G5 boards to desolder and recap using my *gloat* Ersa "mother of all workstations",least that is what they told/sold me.Getting hold of 1800 x 6.3v 10mm dia x 16mm 5mm pitch caps is a nightmare,I can get the right size but at 10v.There are 24 of these to recap,which increases the overall voltage by about 80 odd volts,or I can get 2200 and 1500 at the same voltage and size.
Which is the lesser evil to get?.I know increasing the voltage is ok within reason,but is it safe over a spread of 24 caps?.Hence my dilemma and my ignorance in not quite knowing what to do.Help!.

[PCBONEZ]

Re: Capacitance vs Voltage Dilemma.

10mm is easy in those.
It's 8mm that are hard to find.

Caps don't 'make voltage'.
The voltage labeled on a capacitor is a limit, like a load limit on a rope.
The voltage in the circuit will be the same.

I suggest you get 1800uF 10mm 6.3v. - It's a very easy size to find.
https://www.badcaps.net/pages.php?vid=22
http://cgi.ebay.com/50-NIPPION-6-3V-...item3ef787aa71

[Toasty]

Re: Capacitance vs Voltage Dilemma.

Huh?

http://www.mouser.com/Search/Product...47-UHZ0J182MPM

1800 uF, 6.3v, 10 x 16mm, 105°C

Topcat (site owner) could also supply you with those caps.
https://www.badcaps.net/pages.php?vid=22
https://www.badcaps.net/pages.php?vid=23

There are also kits available from this guy - http://www.jimwarholic.com/
He's done a lot of work on them and has plenty of good info there.

Toast

[370forlife]

Re: Capacitance vs Voltage Dilemma.

I'm guessing with the use of the words "chaps" and "shed" he is probably from the UK. Shipping might be a issue.

[Toasty]

Re: Capacitance vs Voltage Dilemma.

>>he is probably from the UK<<

Yeah. Why isn't the location required when you register. Go through the trouble of finding something only to discover they live in East Jabip.

EDIT: http://uk.mouser.com/ProductDetail/N...fYY11d6rmNk%3d

[deckart]

Re: Capacitance vs Voltage Dilemma.

Tell you what,East Jabip sounds a lot more interesting compared to where I live in North London.Thanks for the link,am in the process of buying up most of the UK stock of these capacitors.12 weeks till more come in,what a joke!.
Better take up knitting in the meantime.

[PCBONEZ]

Re: Capacitance vs Voltage Dilemma.

The two links I gave you both ship to UK.

[deckart]

Re: Capacitance vs Voltage Dilemma.

Yep,ta for that Mr.PCBONEZ,went to Mouser,they are shipping free!all the way here!.
Whatever next.

[techcaps45]

Re: Capacitance vs Voltage Dilemma.

Mouser usually has terrible prices and does not carry MCZ the last I checked. I have gotten them from both thecapking.com and from computekinc.us Currently TCK has the best price.

[PCBONEZ]

Re: Capacitance vs Voltage Dilemma.

computekinc.us won't tell you what series [or even brand] you are getting even if you ask before hand by email. They just blow you off and don't answer at all.
They have no problem selling Rubycon PX series as 'motherboard capacitors' and those aren't even low ESR.

Lytics are usually a little more at Mouser but Solid Poly are usually less.

[PCTechNY23]

Re: Capacitance vs Voltage Dilemma.

I tried computek and their caps are garbage. Leads bent beyond repair and cases look like they spent a year washed up on a beach.