Question about capacitor size with same rating

Nier · 10-19-2021, 10:13 AM

If the capacitor rating is identical but if the replacement capacitor is smaller in size, does it matter?

**PeteS in CA** · 10-19-2021, 12:17 PM

If by "rating" you mean capacitance and voltage, it often does matter, because the temperature, impedance, and ripple current rating often matter a lot.

On the other hand, if you are comparing a 30 year old capacitor and a 2021 manufactured capacitor of the same capacitance, voltage, temperature, impedance, and ripple current ratings, the newer part might be smaller, due to technology progress.

Nier · 10-19-2021, 07:51 PM

Quote:

Originally Posted by PeteS in CA

If by "rating" you mean capacitance and voltage, it often does matter, because the temperature, impedance, and ripple current rating often matter a lot.

On the other hand, if you are comparing a 30 year old capacitor and a 2021 manufactured capacitor of the same capacitance, voltage, temperature, impedance, and ripple current ratings, the newer part might be smaller, due to technology progress.

I'm looking to replace Rubycon 2700uf 6.3v MFZ series and 1500uf 16v MCZ series on an old xbox 360. I couldn't find a datasheet for either rubycon series. Which capacitor brand and series is appropriate for a game console? Would a capacitor labeled for general purpose and with low impendence work?

AleXis6 · 10-19-2021, 11:44 PM

Quote:

Originally Posted by Nier

I'm looking to replace Rubycon 2700uf 6.3v MFZ series and 1500uf 16v MCZ

just some information here
https://www.badcaps.net/forum/showthread.php?t=26134
https://www.badcaps.net/forum/showthread.php?t=18911
https://www.badcaps.net/forum/showthread.php?t=53198

10-19-2021, 10:13 AM	#1
Nier New Member Join Date: Aug 2020 City & State: Texas My Country: USA I'm a: Knowledge Seeker Posts: 5	Question about capacitor size with same rating If the capacitor rating is identical but if the replacement capacitor is smaller in size, does it matter?

10-19-2021, 12:17 PM	#2
PeteS in CA Badcaps Veteran Join Date: Aug 2005 City & State: San Jose, CA My Country: USA, Unsure of Planet Line Voltage: 120VAC, 60Hz & 115VAC, 400Hz I'm a: Professional Tech Posts: 3,385	Re: Question about capacitor size with same rating If by "rating" you mean capacitance and voltage, it often does matter, because the temperature, impedance, and ripple current rating often matter a lot. On the other hand, if you are comparing a 30 year old capacitor and a 2021 manufactured capacitor of the same capacitance, voltage, temperature, impedance, and ripple current ratings, the newer part might be smaller, due to technology progress. __________________ PeteS in CA Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells. ************************** To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it. ************************** Anti-Covid-Vaxxer pig crap claim/prediction, Doctor: Heart Failure from mRNA Jabs "Will Kill Most People" \| Principia Scientific Intl. ; Dr. Geert Vanden Bossche Warns COVID-19 Jab Injuries and Deaths Will Soon "Collapse Our Health System" (VIDEO) ; Fully Vaxxed May 2021; Since that time I've done 7 5Ks, 1 8K, 8 10Ks, and 4 half marathons

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