[TriEmbed] Digikey Order Question

[jonjwolfe at anibit.com]

Caps are funky. They literally range over 17 orders of magnitude in real 
world applications, though the high capacity ones are rare for what we 
usually do, and are extremely dangerous. Check out: 
https://www.youtube.com/watch?v=EoWMF3VkI6U  which also has a bunch of 
nice explanations on how caps work and formulas for charge timing and 
energy storage, in addition to videos of vaporizing pcbs, coins, and 
nails with 10 volts. A "super cap" charged to 9V is much more dangerous 
than a standard 9V battery because the "equivalent series resistance" 
(ESR) of batteries is much much higher than in most capacitors, which 
has the effect of throttling the current.

If you just want to build up a generic supply for most general use 
cases, Jameco has some nice kits: 
http://www.jameco.com/1/3/capacitor-kits

(you could also take the list of caps in the kits and source on Digikey, 
but that would be a lot of work)


On 2015-01-21 10:44, Grawburg wrote:
> I'm building up my supply of components and am getting ready to get
> some more items.
> I already have a good supply resistors, transistors, MOSFETS, and
> diodes. Today I'm going to order some
> LM3171Ts and want to add some electrolytic caps. My question is:
> 
> What size caps should I make sure to have on hand (I do have some 0.1
> mF ceramic)?
> What other small components should be in my arsenal?
> 
> 
> Thanks,
> Brian
> 
> 
> 
> 
> 
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