CurtPalme.com Home Theater Forum

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Hi guys this is the second power supply for my iMac and this time I opened her up and found a bunch of swelling caps.
I know most like to use the LOW ESR caps for computers and I also like them. But some sizes Are hard to find , that is not value but physical size as the iMac's power supply is tight. So will low impedance work just as well?

I am not in the mood to look up the definition of each one, just want to know if it makes any difference.

Caps I need
1000uf 10v 8mm dia
1000uf 25v 10mm dia
2200uf 25 v 10mm dia
1000uf 25v 12.5mm dia
3300uf 10v 10mm dia
120uf 10-16v 10mm dia
1200uf 16v 10mm Dia

I usually look on newark but most low ESR's are from farnell and need to add a 20$ handling charge, I could order a kit but the kits i have seen on Jim Warholick's site are not the same as my power supply. most i can find on Mouser and digikey as well. But the main question is will low Impedance work the same as low ESR's?

Athanasios

**Curt Palme** · Posted: Sat May 02, 2009 12:48 am Post subject:

Yes, you bet, they are the same.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

I went will all Nichicon HE series and one Pani FM series.
the nichicons also had longer life up to 10,000 hours on some!! I leave my comp on 24/7 so this will be good.

Athanasios

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Good news Power Supply re capped and she fired up. typing on her right now for this post! Smile

Thanks Curt for the confirmation of those caps.
Another thing I noticed the Whites are Whiter now!! they were going a bit pink on me before the power supply was acting up ! Thumbs Up

Athanasios