Abstract: The instant disclosure provides a color-changeable capacitor package structure and a color-changeable capacitor casing structure thereof, and a circuit board assembly. The color-changeable capacitor casing structure includes a metal casing, a first covering layer and a second covering layer. The metal casing has an outer surface and an inner surface, and the metal casing has a receiving space for receiving a capacitor. The first covering layer is formed on the outer surface of the metal casing, the second covering layer is formed on the first covering layer, and one of the first covering layer and the second covering layer is a thermochromic layer for showing a color that is changeable according to temperature variation.

Abstract: The instant disclosure provides a color-changeable capacitor package structure and a color-changeable capacitor casing structure thereof, and a circuit board assembly. The color-changeable capacitor casing structure includes a metal casing, a first covering layer and a second covering layer. The metal casing has an outer surface and an inner surface, and the metal casing has a receiving space for receiving a capacitor. The first covering layer is formed on the outer surface of the metal casing, the second covering layer is formed on the first covering layer, and one of the first covering layer and the second covering layer is a color display layer for showing a color that is changeable by receiving a light source.

Abstract: The present disclosure provides a wound capacitor package structure and a wound assembly thereof. The wound capacitor package structure includes a wound assembly, a package assembly, and a conductive assembly. The wound assembly includes a wound positive conductive foil, a wound negative conductive foil, and two wound separator papers. The package assembly is used for enclosing the wound assembly. The conductive assembly includes a first conductive pin electrically contacting the wound positive conductive foil and a second conductive pin electrically contacting the wound negative conductive foil. The wound positive conductive foil has a first predetermined width, the wound negative conductive foil has a second predetermined width, each of the two wound separator papers has a third predetermined width, and the first predetermined width of the wound positive conductive foil and the second predetermined width of the wound negative conductive foil are different.

Abstract: The present disclosure provides a wound capacitor package structure without negative conductive foil and a wound assembly thereof. The wound capacitor package structure includes a wound assembly, a package assembly, and a conductive assembly. The wound assembly includes a wound positive conductive foil and a wound separator paper mated with the wound positive conductive foil. The package assembly is used for enclosing the wound assembly. The conductive assembly includes a first conductive pin electrically contacting the wound positive conductive foil and a second conductive pin electrically contacting the wound separator paper. The wound separator paper has a plurality of conductive materials disposed therein, so that the wound separator paper with the conductive polymer materials can be used as a negative conductive paper.

Abstract: The instant disclosure provides a color-changeable capacitor package structure and a color-changeable capacitor casing structure thereof, and a circuit board assembly. The color-changeable capacitor casing structure includes a metal casing, a first covering layer and a second covering layer. The metal casing has an outer surface and an inner surface, and the metal casing has a receiving space for receiving a capacitor. The first covering layer is formed on the outer surface of the metal casing, the second covering layer is formed on the first covering layer, and one of the first covering layer and the second covering layer is a color display layer for showing a color that is changeable by receiving a light source.

Abstract: The instant disclosure provides a color-changeable capacitor package structure and a color-changeable capacitor casing structure thereof, and a circuit board assembly. The color-changeable capacitor casing structure includes a metal casing, a first covering layer and a second covering layer. The metal casing has an outer surface and an inner surface, and the metal casing has a receiving space for receiving a capacitor. The first covering layer is formed on the outer surface of the metal casing, the second covering layer is formed on the first covering layer, and one of the first covering layer and the second covering layer is a thermochromic layer for showing a color that is changeable according to temperature variation.