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Re: [TCML] Voltage - Gap
On 1/30/12 6:13 PM, jhowson4@xxxxxxxxxxx wrote:
I actually have no idea how to do the calculations you speak of, not even a ball park idea. Is there a specific parameter on the data sheet that tells you how much energy these can dissipate in the form of heat? And if so could you give a few hints as to how I would go about these calculations.
There is some discussion *way* back in the archives...
But what you want to look at is things like the current rating (usually
given as RMS amps) and the ESR (Equivalent Series Resistance), as well
as dV/dt.
Think of the capacitor having a resistor in series, and the RF current
through the cap dissipates some power.
The problem is that most capacitors have terrible thermal properties.
look at http://www.cde.com/catalogs/942c.pdf
The 0.15 uF, 2kV part is 5 mOhm ESR 2879 V/us, 432 Ipk, and 13.5 Irms
(at 100kHz)
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