ELECTRICAL CONNECTOR FOR CIRCUIT BOARDS AND ELECTRICAL CONNECTOR ASSEMBLY FOR CIRCUIT BOARDS

Connector with connector elements supported by a support and arranged on a mounting face of a circuit board. The connector elements have terminals arranged in the connector-width direction as well as a stationary retainer and a movable retainer, securing said terminals in place; a metal sheet member having a parallel plate portion extending in the connector-width direction throughout at least a portion of the terminal array range and located on opposite to a lateral face on which the contact portions of the terminals are located; and a biasing portion formed by folding back in the edge portion of said parallel plate portion in the through-thickness direction and faces said parallel plate portion. When connected to a counterpart connector, said biasing portion applies pressure to another adjacent connector element with a biasing force, such that its reaction force applies contact pressure and brings the contact portions in contact with counterpart terminals.