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General => General Chat => Topic started by: ZeTeX on May 12, 2016, 03:00:05 pm

Title: "CORNELL DUBILIER" Capacitors
Post by: ZeTeX on May 12, 2016, 03:00:05 pm
are they any good? they are the cheapest 10000uF 50V capacitors in my local distributor.  :)
 
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: nanofrog on May 12, 2016, 03:08:31 pm
That brand is fine IME. Just be sure to check out the datasheet first to see if they're fit for your purposes.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: daqq on May 12, 2016, 03:42:21 pm
I didn't have any problems so far, though we aren't using the electrolytes from them, rather some high voltage foil ones.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: wraper on May 12, 2016, 04:06:10 pm
They usually don't go into cheap mass produced electronics. Actually I've seen them only in some expensive specialized devices.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: alsetalokin4017 on May 12, 2016, 04:36:22 pm
I have always considered C-D a premium brand.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: Cubdriver on May 12, 2016, 06:06:27 pm
They've been around for a very long time, and make good stuff based on my experience at least.   :-+

-Pat
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: Tinkerer on May 13, 2016, 03:45:06 am
There are 3 of these sitting on the power supply board of a certain box my company is designing. Said boxes get sold for 10 of thousands of $$ and require they jump through alot of hoops to be certified by the FAA etc. So, yea, they make good stuff.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: SteveyG on May 13, 2016, 07:38:39 am
Yes they're high quality capacitors, for some reason they don't have the same brand recognition among hobbyists as Nichicon or Panasonic but they're in all the decent gear.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: ZeTeX on May 13, 2016, 11:35:07 am
Alright that's enough comments for me to get me trust their caps. thanks for anybody that commented.  :D
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: Tom45 on May 13, 2016, 12:45:11 pm
Cornell Dubilier was an old company when I first got interested in electronics in the 50's. This thread made me curious about their history: http://www.cde.com/why-cde/history (http://www.cde.com/why-cde/history)

Started by William Dubilier in 1909 with mica "condensers". The first commercial manufacturer of capacitors. Merged with Cornell Radio in 1933.

They must be doing something right to last that long.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: john_p_wi on May 13, 2016, 01:30:30 pm
They have always been considered a "premium cap" as long as I can remember.  Interestingly, they bought Illinois Capacitor (for the US guys) about a year and a half ago...

http://www.illinoiscapacitor.com/news.aspx (http://www.illinoiscapacitor.com/news.aspx)
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: VK3DRB on May 15, 2016, 10:34:26 am
I have used them in designs of medical equipment. Never had a problem with them and the quality is excellent.

I seem to recall Digikey had attractive prices on them a few years ago, compared to other brands. They are made in the USA and Mexico and Cornell Dubilier is an American company in South Carolina. I would trust them any day over capacitors made in China.
Title: Re: "CORNELL DUBILIER" Capacitors
Post by: Arjan Emm on May 15, 2016, 10:55:04 am
For a sparkgap tesla coils you need really bullit proof capacitors. The 942 series from cornell dublier are the most used capacitors in the tesla scene. The only affordable capacitors that can cope with this kind of abuse. typicaly the 942C20P15K.  The best choice for high frequency, high voltage, high current applications.