A connector comprising: a housing in which an electronic component can be inserted from an insertion slot and in which the electronic component can be fitted in an accommodating part; and a switch (160A, 160B) which is opened and closed by the electronic component fitted in the accommodating part in the housing, wherein: the switch comprises: a fixed terminal which is fixed to the housing; and a movable terminal which comprises: a contacting part which is placed in the accommodating part to flexibly move backward from the accommodating part and which is pressed by the electronic component inserted in the accommodating part and moves backward from the accommodating part; and a movable contact part which, accompanying the backward movement of the contacting part, moves in a same direction as the contacting part and contacts and conducts with the fixed terminal or parts from the fixed terminal, characterized in that an isolating wall part which isolates a contact area between the movable contact part and the fixed terminal, from a contacting area between the contacting part and the electronic component, is provided between the contacting part and the movable contact part in the housing. a housing in which an electronic component can be inserted from an insertion slot and in which the electronic component can be fitted in an accommodating part; and a switch (160A, 160B) which is opened and closed by the electronic component fitted in the accommodating part in the housing, wherein: the switch comprises: a fixed terminal which is fixed to the housing; and a movable terminal which comprises: a contacting part which is placed in the accommodating part to flexibly move backward from the accommodating part and which is pressed by the electronic component inserted in the accommodating part and moves backward from the accommodating part; and a movable contact part which, accompanying the backward movement of the contacting part, moves in a same direction as the contacting part and contacts and conducts with the fixed terminal or parts from the fixed terminal, the switch comprises: a fixed terminal which is fixed to the housing; and a movable terminal which comprises: a contacting part which is placed in the accommodating part to flexibly move backward from the accommodating part and which is pressed by the electronic component inserted in the accommodating part and moves backward from the accommodating part; and a movable contact part which, accompanying the backward movement of the contacting part, moves in a same direction as the contacting part and contacts and conducts with the fixed terminal or parts from the fixed terminal, a fixed terminal which is fixed to the housing; and a movable terminal which comprises: a contacting part which is placed in the accommodating part to flexibly move backward from the accommodating part and which is pressed by the electronic component inserted in the accommodating part and moves backward from the accommodating part; and a movable contact part which, accompanying the backward movement of the contacting part, moves in a same direction as the contacting part and contacts and conducts with the fixed terminal or parts from the fixed terminal, a contacting part which is placed in the accommodating part to flexibly move backward from the accommodating part and which is pressed by the electronic component inserted in the accommodating part and moves backward from the accommodating part; and a movable contact part which, accompanying the backward movement of the contacting part, moves in a same direction as the contacting part and contacts and conducts with the fixed terminal or parts from the fixed terminal,