To provide a capacitor housed in a case, which is easy to manufacture and easily mounted, and enables an increase in density of a printed wiring board or the like and a miniaturization of the printed wiring board or the like.

In a capacitor 16 housed in a case of a structure, where a capacitor element 1 is housed in the case 3 and at the same time, a cover 7 having terminals 13a and 13b penetrating the cover 7 is mounted on the case 3 for sealing the element 1 in the case 3, the end, which is situated on the side of the element 1, of a terminal 14 for reinforcement is buried in the cover 7 made of an insulating resin to provide the terminal 14 on the cover 7.