Abstract: A multimedia card electrical connector (1) includes an insulative housing (10), a plurality of terminals (12) and an ejector mechanism (13) mounted on the housing The ejector mechanism has a push-rod (130) forming an actuator (135) at an end section thereof, a rotatable bifurcated cam (132) defining an edge (141) at an end thereof, a torsional spring(131) engaging with the cam and a compression spring (133) encircling the push-rod. A front side of a multimedia card (2) inserted into the connector pushes an ejecting tab (140) of the cam against a force of the torsional spring and the push-rod is permitted to move to a rearward position. At this position, the edge of the cam abuts against a side the actuator, which serves to prevent a pivotal movement of the cam which would eject the inserted card out of the insulative housing. To eject the card,the push-rod is forwardly pushed by an external force so that the actuator is disengaged from the cam.

Abstract: A modular receptacle connector of the present invention comprises a dielectric housing, a plurality of contact pin arrays assembled in the housing, a number of contact pins mounted in each contact pin array and an integral shield encasing the housing and the contact pin arrays to shield the contact pins therein. The shield comprises a bottom wall depending perpendicularly rearward from a front wall thereof, having an irregular contour at a rear edge thereof and covering a relatively large portion of the bottom surface of the dielectric housing. The irregular contour comprises a plurality of convex portions thereon engaging with corresponding cavities formed on the bottom surface of the dielectric housing. The bottom wall of the shield further comprises one row of additional grounding pins depending perpendicularly downward from the rear edge thereof.

Abstract: An RJ-45 receptacle connector (2) for preventing insertion of a noncomplementary plug connector therein includes a dielectric housing (4) defining a receiving space (44) therein, a terminal module (5), an anti-mismating mechanism (7), and front and back shields (6,1). The anti-mismating mechanism (7) includes a pair of spring member 71, each having a base (72) fixed to the dielectric housing, a resilient stem (73) extending forwardly through the sidewall into the receiving space, a curved portion (732) formed near a free end (724) of the stem, and a stop tongue (75) extending from the resilient stem into a channel (49) defined in an upper wall (42). A smaller, noncomplementary plug connector is blocked from entry by the stop tongues projecting into the channel. Entrance of the complementary connector however, forces the curved portions aside, which moves the stop tongues from the connector's path, allowing full insertion of the complementary connector.