Polypropylene metallized
capacitors are of general use in power electronics because of their reliability, their
self-healing capabilities, and their low price. Though the behavior of metallized coiled
capacitors has been discussed, no work has been carried out on stacked and flattened
metallized capacitors. The purpose of this article is to suggest an analytical model of
resonance frequency, stray inductance and impedance of stacked capacitors. We first solve the
equation of propagation of the magnetic potential vector (A) in the dielectric of an
homogeneous material. Then, we suggest an original method of resolution, like the one used
for resonant cavities, in order to present an analytical solution of the problem. Finally, we give some experimental results proving that the physical knowledge of the parameters of the capacitor (dimension of the component, and material constants), enables us to calculate an analytical model of resonance frequency, stray inductance and impedance of stacked capacitors.