Electrical connector and electrical connector assembly

An electrical connector assembly, comprising two electrical connectors which have the same structure and are mated with each other, each electrical connector comprising:

• an insulating housing;
• and
• a plurality of terminal columns arranged at least partially within the insulating housing, each terminal column comprising a plurality of ground terminals and a plurality of differential signal terminal pairs arranged along a first direction, the ground terminals and the differential signal terminal pairs being alternately arranged in each terminal column, and the terminal columns being arranged along a second direction perpendicular to the first direction and being spaced apart from each other;
• each ground terminal having a body portion and two elastic contact portions extending from the body portion and spaced apart from each other,
• each differential signal terminal pair being composed of two signal terminals, adjacent sides of the two signal terminals of each differential signal terminal pair arranged side by side each being defined as an inner facing side of each signal terminal and a side of each signal terminal opposite to the inner facing side being defined as an outer opposite side, and each signal terminal having a body portion and an elastic contact portion extending from the body portion, an orthogonal projection of the two body portions of a differential signal terminal pair onto an adjacent terminal column in the second direction being positioned within a range covered by the width of the body portion of one corresponding ground terminal of the adjacent terminal column and an orthogonal projection of the two elastic contact portions of a differential signal terminal pair onto the adjacent terminal column in the second direction being positioned within a range which is covered by the total width of the two elastic contact portions of one corresponding ground terminal of the adjacent terminal column.

An electrical connector, comprising:

• an insulating housing;
• and
• a plurality of terminal columns arranged at least partially within the insulating housing, each terminal column comprising a plurality of ground terminals and a plurality of differential signal terminal pairs arranged along a first direction, and the ground terminals and the differential signal terminal pairs being alternately arranged in each terminal column,
• each ground terminal having two tail portions spaced apart from each other, each signal terminal of each differential signal terminal pair having a tail portion, and a total width of the two tail portions of each differential signal terminal pair in the first direction being smaller than a total width of the two tail portions of each ground terminal in the first direction, the terminal columns being arranged along a second direction perpendicular to the first direction and being spaced apart from each other, an arrangement pattern of the terminals of the terminal columns being:
• the terminals of one terminal column of two adjacent terminal columns being alternately arranged as one ground terminal, one differential signal terminal pair and one ground terminal so as to make two tail portions of one ground terminal, two tail portions of two signal terminals, two tail portions of one ground terminal alternately arranged along the first direction, the terminals of the other terminal column of the two adjacent terminal columns being alternately arranged as one differential signal terminal pair, one ground terminal and one differential signal terminal pair so as to make two tail portions of two signal terminals, two tail portions of one ground terminal, two tail portions of two signal terminals alternately arranged along the first direction, and the differential signal terminal pair of the one terminal column of the two adjacent terminal columns corresponding to the ground terminal of the other terminal column of the two adjacent terminal columns in position in the second direction.