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Topics - brownj4

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How Do I? Beginner's Paradise. / Which Capacitor Types Should I use
« on: February 09, 2013, 02:31:36 PM »
Hi Everyone,

I'm finally moving on from BYOC kits and am trying to build some pedals using madbean PCBs and ordering all the components myself. 

I've searched these forums for a while and can't seem to find the answer to my question regarding capacitor types.

As an Engineer - though not an Electrical Engineer, hence the capacitor questions - I might be over analysing this one.  But in any case, I'm hoping someone can help lead me down the right path.

1. There are 3 "types" of capacitors I have seen on the madbean PCB layout drawings:  Circular, Rectangular, and Oval.  What does this represent in terms of the type of cap to use?  I haven't seen this info. anywhere.

2.  I am building a Bill Of Materials for a Runt, and have noticed that certain capacitor values span different types of caps.  For example, at Mammoth Electronics you can get a 0.0033uF cap as a 100V polyfilm cap, 630V polyfilm cap, and also as a 3300pF 50V ceramic cap.  In situations where there is overlap between 2 or 3 different types of capacitors, what should be used?  Or does it matter?

If this info. is already somewhere else, please feel free to just direct me there.

Thanks!

Jeremy

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