Terminal assembly including flat surface formed and aligned for achieving flat contact with mating tab

A terminal assembly, comprising:

• a male terminal including a tab having a circular cross-section;
• and
• a female terminal connected to the male terminal with each other and including a body portion having a connecting space formed therein,
• wherein:
• the body portion of the female terminal includes a resiliently deformable resilient contact piece and a pair of receiving portions,
• the resilient contact piece has a variable connection surface arranged toward a center of the connecting space when viewed from a connecting direction of the male terminal to the female terminal,
• a distance between the variable connection surface and the center of the connection space is variable due to deflection and deformation of the resilient contact piece,
• the pair of receiving portions are arranged on a side opposite to the resilient contact piece across the connection space and have a pair of flat fixed connection surfaces inclined to spread toward the variable connection surface when viewed from a connecting direction of the male terminal to the female terminal,
• distances between the pair of fixed connection surfaces and the center of the connection space are constant,
• an opening angle of the pair of fixed connection surfaces is constant in the connecting direction, and
• the male terminal is held in the connection space by bringing the tab into contact with the variable connection surface and the pair of fixed connection surfaces when the tab is arranged in the connecting space.