A connector includes: a terminal, and a housing holding the terminal, the connector being mounted on a substrate with a liquid potting agent applied thereto, wherein: the housing includes a mating recess mating with a counterpart connector, along with a bottom plate part in which a terminal press-in hole with the terminal pressed therein is formed, the terminal includes a contact part contacting a counterpart terminal of the counterpart connector in the mating recess, a substrate connection part which is exposed below the bottom plate part so as to be connected to the substrate, and a holding part housed and held in the terminal press-in hole, and this holding part includes a terminal side first seal part and a terminal side second seal part which respectively configure a first seal part and a second seal part by adhering to the side faces of the terminal press-in hole.