Connector device capable of suppressing increase in projection area of board-side connector

A connector device, comprising:

• a board-side connector having a circular cross-sectional shape, the board-side connector being fixed to a circuit board with an axis oriented perpendicular to the circuit board;
• a mating connector facing the board-side connector;
• an adapter rockably supported in the mating connector, a tip part of the adapter being connected to the board-side connector;
• a guide portion provided on a tip part of the board-side connector, an outer peripheral surface of the guide portion being inclined to reduce a diameter toward a tip side;
• and
• a guided portion provided on the tip part of the adapter, the guided portion correcting a position shift of the adapter with respect to the board-side connector by sliding in contact with the guide portion,
• wherein a part of the board-side connector having a maximum diameter is the guide portion,
• the board-side connector includes:
• a board-side dielectric;
• and
• a board-side outer conductor surrounding the board-side dielectric and including a plurality of resilient contact pieces cantilevered forward toward the adapter on a tip portion of the board-side outer conductor,
• the guide portion includes:
• a first guide portion provided on a tip portion of the board-side dielectric;
• and
• a plurality of second guide portions provided on tip portions of the resilient contact pieces, respectively, and
• the first guide portion covers tip portions of the second guide portions from front.