Connector assembly

A connector assembly comprising:

• a plug connector including a plurality of plug contacts, and a plug main body that accommodates the plurality of plug contacts, the plug connector being mountable on a plug side board;
• and
• a receptacle connector including a plurality of receptacle contacts, and a receptacle main body that accommodates the plurality of receptacle contacts, the receptacle connector being mountable on a receptacle side board, wherein
• the plurality of plug contacts and the plurality of receptacle contacts are respectively brought into electrical contact with each other by mating the plug connector and the receptacle connector with each other,
• the receptacle main body includes a rectangular tube part that accommodates the plug connector in a mated state where the plug connector and the receptacle connector are mated with each other,
• the rectangular tube part has two receptacle pitch inner surfaces opposite each other in a pitch direction along which the plurality of receptacle contacts are aligned,
• the plug main body has two plug pitch outer surfaces respectively opposite the two receptacle pitch inner surfaces in the pitch direction in the mated state,
• each of the receptacle pitch inner surfaces includes a first receptacle pitch inner surface and a second receptacle pitch inner surface in this recited order in a removal direction of removing the plug connector from the receptacle connector,
• each of the plug pitch outer surfaces includes a first plug pitch outer surface opposite the first receptacle pitch inner surface in the pitch direction in the mated state and a second plug pitch outer surface opposite the second receptacle pitch inner surface in the pitch direction in the mated state in this recited order in the removal direction,
• the first receptacle pitch inner surface and the first plug pitch outer surface opposite each other are both flat surfaces and configured to come into surface contact with each other in the mated state,
• a distance in the pitch direction between the second receptacle pitch inner surface and the second plug pitch outer surface opposite each other in the mated state is larger than a distance in the pitch direction between the first receptacle pitch inner surface and the first plug pitch outer surface opposite each other in the mated state, and
• a dimension in the pitch direction between the first receptacle pitch inner surfaces of the two receptacle pitch inner surfaces is larger than a dimension in the pitch direction between the first plug pitch outer surfaces of the two plug pitch outer surfaces.