Output capacitor array of a switched-mode power supply

An output capacitor array of a switched-mode power supply, comprising:

• a) at least one substrate having a layered stack of a positive-pole metal foil, an insulating foil, and a negative-pole metal foil;
• b) a plurality of electrically parallel connected individual capacitors disposed on said at least one substrate, said capacitors having positive poles each being electrically conductively connected directly to said positive-pole metal foil, and said capacitors having negative poles each being electrically conductively connected to said negative-pole metal foil;
• and
• c) a solid negative-pole metal rail being electrically conductively connected to said negative-pole metal foil, and a solid positive-pole metal rail being electrically conductively connected to said positive-pole metal foil and being insulated from said negative-pole metal rail, for carrying direct current in at least one of an input and output region of the output capacitor array.