K

#### K2

under:

http://www.avxcorp.com/docs/techinfo/eqtant.pdf

you can find some basics about the 'ESR' of a Capacitor.

A formula is shown describing the 'ESR' as: Rp/((2*Pi*f*Cp*Rp)^2+1)

and the 'ESC' is : Cp+1/((2*Pi*f*Rp)^2*Cp)

I guess, that the basic model looks like this:

|| __________ __________

--------o----------||--------o-----|__________|-------|==========|----

| || Cp | Rs Ls

| ___________ |

|---|___________|----|

Rp

My first Questions:

Is the formula for the ESR correct??

Paralleling Cp and Rp should result into an impedance of:

Rp/sqrt(1+(2*Pi*f*R*C)^2)

Or NOT????

My second Question:

I don't have a glue how the 'ESC' has to be calculated at all.

What is the idea behind that?

So long

Karsten