An electrical connector for circuit boards whose terminals 40 have stationary-side retained portions 42 retained in place in the stationary housing 20, movable-side retained portions 44 retained in place in the movable housing 30, and resilient portions 45 provided between said stationary-side retained portions 42 and said movable-side retained portions 44, and the resilient portions 45 have curved portions 45A, 45B curved such that they have sections positioned overlappingly in the heightwise direction of the connector perpendicular to the mounting face of the circuit board in a section of the resilient portions 45 in the longitudinal direction of the terminals 40.