Rated voltages for DC and AC operation are usually not the same. Most film capacitors are not linear and TC is expressed in percent.
Dissipation factor varies with frequency and temperature.
The lower the ESR the higher the current carrying ability the capacitor will have. A measure of the resistance to a DC current flow through the capacitor under steady state conditions. Values for film and ceramic capacitors are usually expressed in megohm-microfarads for a given design and dielectric. The actual resistance of the capacitor is obtained by dividing the megohm-microfarads by the capacitance. DA is due largely to the dipole moment of the dielectric and to lesser degree the migration of free electrons to the surface of the dielectric.