A mother board to-daughter-board electrical connector (2) comprises a metal housing (8) having mounting feet (58) for securing it to a mother circuit board (MB), and a rocker assembly (10) consisting of an elastomeric electrical connector element (4) and a metal spring support (6) fixed together in internested relationship. The connector element (4) has an upright arm (14) and a transverse arm (16), a first node (22) projecting from the upright arm (14) and a second node (26) projecting from the transverse arm (16). Printed conductors (28) on the connector element (4) have contact surfaces (30,32) extending over the nodes (22,26). The metal support (6) has trunnions (44) which engage in circular openings (60) in side plates (50) of the housing (8). The daughter circuit board (DB) can be inserted into the housing (8) in a vertical, pre-loaded position and can be tilted towards the rocker assembly (10) so as to be latched thereagainst by latching tongues (56) on the housing (8), in a connecting position, in which conductors (PC2) on the daughter board (DB) engage respective ones of the contact surfaces (30) on the first node (22). The contact surfaces (32) on the second node (26) engage the conductors (PC1) on the mother board (MB). As the daughter board (DB) is tilted to its connecting position, the rocker assembly (10) is tilted in the same direction against the resilient action of the spring support (6) whereby contact surfaces (30) on the first node (22) are spring loaded against the conductors (PC2) of the daughter board (DB).
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