Abstract: A method for producing a Fe-based nanocrystalline alloy magnetic core, the method including: an oxide film forming step of subjecting a magnetic core material in which a ribbon of a nanocrystallizable Fe-based alloy is wound to heat treatment under an oxidizing atmosphere; and a nanocrystallizing step of subjecting the magnetic core material that underwent the oxide film forming step to heat treatment under a non-oxidizing atmosphere to perform nanocrystallization of the nanocrystallizable Fe-based alloy; wherein the highest temperature of the heat treatment at the oxide film forming step is a temperature of lower than a crystallization start temperature of the nanocrystallizable Fe-based alloy, and wherein the highest temperature of the heat treatment at the nanocrystallizing step is a temperature of equal to or higher than the crystallization start temperature of the nanocrystallizable Fe-based alloy.

Abstract: A positive electrode 21 and negative electrode 22 formed of a thin metal plate are disposed on the same plane with a space provided therebetween. An insulative resin is disposed in the space between the both electrodes. The insulative resin electrically insulates the positive and the negative electrodes, and making both electrodes integrated as a sheet to form a terminal board. Positive- and negative-electrode drawing portions are formed on the same surface of the main body of a capacitor element, and that surface serves as a joined face with the terminal board. With the terminal board being superimposed on the joined face of the capacitor element, the metal plate forming the positive and negative electrodes of the terminal board are electrically coupled to the positive- and negative-electrode drawing portions of the element, respectively.

Abstract: A positive electrode 21 and negative electrode 22 formed of a thin metal plate are disposed on the same plane with a space provided therebetween. An insulative resin is disposed in the space between the both electrodes. The insulative resin electrically insulates the positive and the negative electrodes, and making both electrodes integrated as a sheet to form a terminal board. Positive- and negative-electrode drawing portions are formed on the same surface of the main body of a capacitor element, and that surface serves as a joined face with the terminal board. With the terminal board being superimposed on the joined face of the capacitor element, the metal plate forming the positive and negative electrodes of the terminal board are electrically coupled to the positive- and negative-electrode drawing portions of the element, respectively.