That was my opinion as well, but I haven't found a datasheet for a ceramic chip cap with leakage information in it. Do you have one? Or know where I could find one?
For example, the following are datasheets for ceramic caps.
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$file/F3102_X7R.pdf
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I couldn't find anything relevant to leakage in the first two datasheets. The third datasheet had some numbers for the insulation resistance, is this equivalent to Rp (parallel leakage resistance) for the part? If so, we are looking at something on the order of 1na which works for my application.
TDK says 10G minimum after 60s at rated voltage, at least for these parts:
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Yes. The AVX spec is the lesser of 100G or 1000M-uF. Since you have
0.01uF, the two numbers are the same. Above 10n the dielectric leakage appears to dominate, below it's the 'package' leakage is my interpretation of the specs.
Best regards, Spehro Pefhany
--
"it\'s the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Ok, Dave, I also happened to need resistance info on a 10uF/4V ceramic cap in a design today because this design uses it in a timing circuit. Here is its data sheet and the info is at the top of page 4:
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