摘要:
Stacked receptacles in a connector that each provide side-by-side differential signal contacts, are attached to a circuit board without additional width to accommodate multiple layers of differential signals by using connector wafer inserts that rotate the side-by-side positioned differential signal contacts to front-to-back contacts.
摘要:
Stacked receptacles in a connector that each provide side-by-side differential signal contacts, are attached to a circuit board without additional width to accommodate multiple layers of differential signals by using connector wafer inserts that rotate the side-by-side positioned differential signal contacts to front-to-back contacts.
摘要:
A surface mount connector has a dielectric housing with first and second opposing mating faces. The first mating face includes first terminals and the second mating face includes second terminals. The first and second terminals each have a tail portion, a contact portion and a terminal retention portion. The terminal retention portion engages the connector housing, and an opening, or hole, is formed in the retention section of the terminal. This opening is sized to keep sufficient metal remaining to retain the terminal in the housing, yet having sufficient surface area to provide a desired capacitance and/or inductance for tuning the impedance of the terminal to the preselected level, the second terminals each having a second terminal retention section with a central portion removed thereof, the removed central portion being spaced away from the first terminal retention area, while minimizing the surface area, size and shape of the central section for tuning the impedance of the terminal to a preselected range.
摘要:
A shielded electrical connector is provided for mounting on a printed circuit board. The connector includes a dielectric housing having a plurality of terminal-receiving cavities and a plurality of board-engaging pads projecting from the bottom of the housing. A plurality of terminals are received in the cavities. Portions of the housing between the terminals are plated with conductive metal material to electrically shield the terminals from each other and to provide a controlled impedance. The plating is continuous onto the pads for connection to appropriate ground circuit means on the printed circuit board. In an alternative embodiment, a shielded electrical connector assembly includes a pair of connectors both of which have plated housings with interengaging plated portions.
摘要:
Blocks of wafer or plug connectors are held together by retainer members and are secured within a backplane connector by a latching assembly. The latching assembly includes a latching lever that has an engagement end extending to the base of the backplane connector. The lever is movably connected to the retainer member so that it may pivot, or rock, about an inflection point. The lever also includes a biasing member that constantly biases the lever into a latching position.
摘要:
A connector for an edge card which includes a plurality of contact terminals spaced apart in an elongated connector housing has at least one latch/eject mechanism rotatably disposed at an end of the connector housing. The latch/eject member operates between a first operative position wherein it latches the edge card in place within the connector housing and a second operative position wherein it at least partially ejects the edge card out of the connector housing. The latch/eject member is limited in its rotation during ejection of the edge card by one or more interference surfaces formed in the latch/eject member which engage a portion of the connector housing during ejection.
摘要:
An electrical connector assembly is provided for mounting on a printed circuit board. The assembly includes an elongated housing having a mother board-mounting face and a daughter board-receiving face. A pair of generally parallel slots extend lengthwise of the housing in the board-receiving face for receiving a pair of daughter boards. A plurality of terminal-receiving passages are provided along the housing in proximity to each slot. A plurality of terminals are received in the passages, and each terminal has a contact section for engaging a circuit on the respective daughter board received in the respective slot. An elongated stiffening bar is disposed within the elongated housing between the pair of slots therein. The bar is rigid in a direction generally perpendicular to the mother board mounted to the board-mounting face of the housing. Stiffening bar includes a plurality of feet for securing the bar to the mother board and thereby preventing warping thereof. The stiffening bar is press fit into a third slot in the board-mounting face of the housing such that the housing and the stiffening bar can be conjointly mounted to the mother board in a single assembly step.
摘要:
A card edge connector assembly includes an elongated housing having opposite ends with card injection and ejection levers thereat, and a card receiving slot between the ends. A printed circuit card has an edge insertable into the slot. The edge of the card is provided with a notch for embracing a partition spanning the slot of the housing to locate the card longitudinally of the housing. The partition of the housing and the notch in the card edge are complementarily offset from a mid-point of the slot to provide polarization between the card and the housing. Each insertion and ejection lever includes a plurality of spaced projections for interengagement with a plurality of recesses in an adjacent side edge of the printed circuit card. The projections move seriatim into and out of the recesses in response to pivoting of the lever to thereby insert and eject the card to and from the slot in response to pivoting the lever between the latched position and the eject position.
摘要:
A socket assembly is provided for receiving memory modules such as single in-line memory modules (SIMMs). The socket assembly includes at least one lower tier SIMM socket that is mountable to a board. A carrier is mounted to the board in generally parallel spaced relationship to the lower tier SIMM socket. At least one upper tier SIMM socket is mounted to the carrier and may be supported in part by a lower tier SIMM socket. The carrier includes a ground shield for preventing interference.
摘要:
A machine insertable DIP switch having the same dimensions as an integrated circuit module which includes a base having molded-in terminal contact elements, a slider for each pair of contacts and carrying a spring-biased contact member of cup or ball shape and a cover holding the sliders within the base. Each slider receives a contactor such that in one position the contacts will be normally closed and in a diametrically opposed position the contacts will be normally open while the actuating tab or button of the slider remains in the same position with respect to the cover and base.