New HP UHU Build Capacitor Voltage - CNCzone.com-The Largest Machinist Community on the net!

redialtone · #1 08-14-2010, 11:11 PM

I am just getting ready to start ordering parts my HP UHU Boards. As I am looking at the Parts lists I have noticed that many of the capacitors don't have the voltage listed. On these components does it really matter what the voltage rating is? Can someone post the list and part numbers of the components they used for their HP UHU build?

H.O · #2 08-15-2010, 06:10 AM

Hi,
I don't have a list but I beleive that for those where it is important the voltage rating is specified in the schematic. For all the .1uf decoupling capacitor use anything above 25V.

Are there any in particular you wonder about?

/Henrik.

redialtone · #3 08-15-2010, 11:46 AM

Hi Henrik,

I was mainly wondering about the Decoupling Caps. Do you know if anyone used the film type for the decoupling?

Clint

H.O · #4 08-16-2010, 05:56 AM

Ceramic or filmtype (such as MKT) shouldn't make much difference for the decoupling caps. Use 25V or more for the voltage rating, most likely you'll find 50V being common.

/Henrik.

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