Are the days of electrolytic capacitors numbered ?

tiefbassuebertr · 22nd February 2010, 01:45 PM

There are more and more manufacturers, that offers values above 1000 uF as polyprophylene capacitor.
Here some examples:

1) http://www.kendeil.com/pdf/K33.pdf
2000uF, 30nH, 1,5mΩ

2) Niederinduktive Kondensatoren - FTCap Fischer & Tausche Capacitors Group

3) ELECTRONICON Kondensatoren und Filterkreis Drosseln > Home > HOME
navigation advices: "Produkte" - "Kondensatoren für die Leistungselektronik" - "Kondensatoren mit großen Kapazitäten" - "Download"
website only in German, but the pdf datasheets also in english

4) WIMA DC-LINK Intermediate Circuit Capacitors

5) WIMA SuperCap Double-Layer Capacitors

6) ICAR (Icar)
http://www.powersmartsystems.ru/file...nk/LNK-P5X.pdf

qusp · 22nd February 2010, 02:52 PM

well while kinda interesting; some of them would seem so incredibly limited in function so as to be practically useless. the 'supercap' in particular may have some use, but with wildly varying capacitance with voltage difference and a maximum rating of 2.5V it doesnt sound very 'super' to me and hardly compares to an electrolytic in application

the DC link is getting there and I love WIMA MKP 4 (in factI just bought a bunch of them)which is part of that range, but capacity is limited and they are pretty massive, no doubt quite pricey with the larger values too. so sure if things march on, absolutely the electrolytic has a limited lifespan, but of course it does!! this is technology afterall.......

havent read any of the others due to language issues and I couldnt be bothered at this stage to get out google

adason · 22nd February 2010, 05:37 PM

price difference between electrolytic and MP cap of the same value is enormous

Enzo · 22nd February 2010, 11:33 PM

And why would a consumer electronics company stuff them into a table radio or portable TV set? There may be a market for these esoteric caps, but that hardly means the main stream electronics parts market is going to dry up anytime soon.

22nd February 2010, 01:45 PM	#1
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	Are the days of electrolytic capacitors numbered ? There are more and more manufacturers, that offers values above 1000 uF as polyprophylene capacitor. Here some examples: 1) http://www.kendeil.com/pdf/K33.pdf 2000uF, 30nH, 1,5mΩ 2) Niederinduktive Kondensatoren - FTCap Fischer & Tausche Capacitors Group 3) ELECTRONICON Kondensatoren und Filterkreis Drosseln > Home > HOME navigation advices: "Produkte" - "Kondensatoren für die Leistungselektronik" - "Kondensatoren mit großen Kapazitäten" - "Download" website only in German, but the pdf datasheets also in english 4) WIMA DC-LINK Intermediate Circuit Capacitors 5) WIMA SuperCap Double-Layer Capacitors 6) ICAR (Icar) http://www.powersmartsystems.ru/file...nk/LNK-P5X.pdf

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22nd February 2010, 02:52 PM	#2
qusp Sometimes a square peg fits a round hole just fine diyAudio Member Join Date: Oct 2009 Location: Brisbane, Australia	well while kinda interesting; some of them would seem so incredibly limited in function so as to be practically useless. the 'supercap' in particular may have some use, but with wildly varying capacitance with voltage difference and a maximum rating of 2.5V it doesnt sound very 'super' to me and hardly compares to an electrolytic in application the DC link is getting there and I love WIMA MKP 4 (in factI just bought a bunch of them)which is part of that range, but capacity is limited and they are pretty massive, no doubt quite pricey with the larger values too. so sure if things march on, absolutely the electrolytic has a limited lifespan, but of course it does!! this is technology afterall....... havent read any of the others due to language issues and I couldnt be bothered at this stage to get out google

22nd February 2010, 05:37 PM	#3
adason diyAudio Member Join Date: Nov 2004 Location: home sweet home	price difference between electrolytic and MP cap of the same value is enormous

22nd February 2010, 11:33 PM	#4
Enzo diyAudio Member Join Date: Sep 2004 Location: Lansing, Michigan	And why would a consumer electronics company stuff them into a table radio or portable TV set? There may be a market for these esoteric caps, but that hardly means the main stream electronics parts market is going to dry up anytime soon.

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