An electronic device, having a fixed conductive plate and an elastic conductive plate, in which the fixed conductive plate, part of which becomes an external terminal portion, the elastic conductive plate connected to the fixed conductive plate, and a fixed electrode portion that is electrically continuous to the elastic conductive plate are provided in a case, the electronic device being characterized in that: a first contact surface and a second contact surface, which are opposite to each other, are provided in the case, at least one of the first contact surface and the second contact surface being a front plate surface of the fixed conductive plate; as for the elastic conductive plate, a first pressure contact portion, which is elastically pressed against the first contact surface, a second pressure contact portion, which is turned-backed from the first pressure contact portion and is elastically pressed against the second contact surface, a support piece portion, which is bent from the second pressure contact portion and extends beyond the first contact surface, an elastic arm portion, which is bent from the support piece portion and extends toward the fixed electrode portion, and an elastically-pressed contact point, which is provided at a top of the elastic arm portion and is elastically pressed against the fixed electrode portion, are integrally formed from a leaf spring metal material; at least one of the first pressure contact portion and the second pressure contact portion is in contact with the front plate surface of the fixed conductive plate; and a restricting support portion positioned on a side opposite to the fixed electrode portion with the elastic conductive plate interposed between the restricting support portion and the fixed electrode portion is provided, the restricting support portion restricting travel of the support piece portion in a direction away from the fixed electrode portion. a first contact surface and a second contact surface, which are opposite to each other, are provided in the case, at least one of the first contact surface and the second contact surface being a front plate surface of the fixed conductive plate; as for the elastic conductive plate, a first pressure contact portion, which is elastically pressed against the first contact surface, a second pressure contact portion, which is turned-backed from the first pressure contact portion and is elastically pressed against the second contact surface, a support piece portion, which is bent from the second pressure contact portion and extends beyond the first contact surface, an elastic arm portion, which is bent from the support piece portion and extends toward the fixed electrode portion, and an elastically-pressed contact point, which is provided at a top of the elastic arm portion and is elastically pressed against the fixed electrode portion, are integrally formed from a leaf spring metal material; at least one of the first pressure contact portion and the second pressure contact portion is in contact with the front plate surface of the fixed conductive plate; and a restricting support portion positioned on a side opposite to the fixed electrode portion with the elastic conductive plate interposed between the restricting support portion and the fixed electrode portion is provided, the restricting support portion restricting travel of the support piece portion in a direction away from the fixed electrode portion.