Oh, crappola. I ordered 942C6P15K-F. The 6 is not 20. Argh.
Regards
James Janota
(727)512-7112 Phone
(727)595-6625 Fax
> On Jun 15, 2018, at 14:08, jimlux <jimlux@xxxxxxxxxxxxx> wrote:
>
>> On 6/15/18 10:16 AM, James Janota wrote:
>> I followed the part numbers and compared them to The Geek Groups MMC build and noticed the parts I received are smaller than theirs. Please advise.
>
> that's fairly odd - it's not like capacitor technology has changed. .. what part number did you order?
> what's the diameter and length of what you have?
>
> The CDE 942 data sheet is here
> http://www.cde.com/resources/catalogs/942C.pdf
>
> If you look at the 942C20P1K-F (2kV 0.10 uF) it shows
> 24.5 mm in diameter (call it an inch)
> 45mm long (about an inch and three quarters)
>
> the 1600V versions are smaller diameter and shorter
>
> Essentially, the volume (of any capacitor) is generally propotional to the stored energy which is 1/2 CV^2.
>
>
> So you look at a 1kV and 2kV 0.10 uF cap
>
> 1kV, 16mm diam, 34 mm long = 6800 cubic mm
> 2kV, 24.5mm diam, 45mm long = 21200 cubic mm.
>
> I'd expect it to go as a factor of 4, and it's a little under..
>
>
>
>
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