Metallized film capacitor

A metallized film capacitor comprising:

• a first winding core arranged along a center axis;
• a second winding core arranged along the center axis and apart from the first winding core;
• and
• a capacitor element wound about the center axis around the first winding core and the second winding core, the capacitor element including
• a dielectric film,
• a first electrode film disposed on the dielectric film, and
• a second electrode film facing the first electrode film across the dielectric film,
• wherein, the first winding core and the second winding core have a thermal conductivity larger than a thermal conductivity of the dielectric film, and
• wherein a length Ld of the capacitor element in a direction of the center axis, a length L1 of the first winding core inside the capacitor element in the direction of the center axis, and a length L2 of the second winding core inside the capacitor element in the direction of the center axis satisfy relations of L1>L2, L1+L2<Ld, L1≧Ld/2, and L2≧(Ld−L1)/2.