On 8/27/2013 11:52 AM, Richards wrote:
What does "INSULATION RESISTANCE" mean on the data sheet? Is this
any clue?
It is the value of DC resistance that would be measured if a high enough
voltage was applied to measure the current. It is a DC resistance.
The resistance WE are talking about is the resistance that is added to
the equivalent circuit in series with the capacitance represents the
power dissipated when the capacitor carries RF current. This is an RF
resistance.
This equivalent circuit consists of series Rs, Cs, and Ls and is
approximately the nominal value of C that you bought, Ls is the
inductance of the wire leads. That high value of DC resistance is in
parallel with Rs and Cs.
73, Jim K9YC
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