Tyco Electronics Amp K.k.

Takaki Naito

Doron Lapidot

Hiroshi Shirai

Masayuki Aizawa

Katsuhiko Kobayashi

Naotaka Sasame

An electrical connector assembly in which conductor pads on a board are used as contacts is described. Signal conductor pads transmitting positive and negative differential signals, are disposed on one side of the board. A ground pad is disposed on the opposite side of the board so that it is positioned at an intermediate point between the positive and negative signal conductor pads, thus forming one set of pads. The signal conductor pads of another adjacent set, are disposed on the same side as the signal pad of the previous set such that their negative differential signals an adjacent. The pad of a third set (not shown in the figures) which is adjacent to the positive signal pad of the second set is a pad that transmits the same positive differential signal. As a result, signal crosstalk can be prevented.

Electrical connector assembly

The invention relates to an electrical cable for termination to an electrical component and method for termination that minimizes the mismatching of the differential impedance of a terminal part from which a shielding covering of an electrical cable has been stripped in a cable consisting of two differential transmission signal wires, a drain wire and a shielding covering that covers the electrical wire. Accordingly, a plastic heat-shrink tube is caused to adhere tightly to the terminal part and shielding covering, except for the stripped front end portion of the terminal part, so that the front end portion is exposed. As a result, the heat-shrink tube prevents or alleviates the mismatching of the differential impedance.

Electrical cable terminal part structure and treatment method

The male connector has a metal shielding shell that accommodates a housing and a synthetic resin enclosure that covers approximately the rear half of this shielding shell . Fastening parts and protruding parts are formed by stamping in the upper-side shell half-body . A metal latching arm which is formed with the approximate shape of a shallow inverted V, and which has an engaging part , is disposed between these fastening parts and protruding parts . The latching arm can be pressed by means of a finger-catch part . This configuration obtains the desired shielding performance while maintaining a compact size in a shielded electrical connector assembly.

Electrical connector assembly and male connector used in the same

An improved high speed connector is provided in which conductive pads ( ) are alternately disposed on both sides of a board ( ). The conductive pad ( ) transmits a &plus; differential signal, and the conductive pad ( ) transmits a &minus; differential signal. These conductive pads are disposed on the same surface ( ). The pad ( ) used for grounding is disposed on the opposite surface ( ) so that this pad ( ) is positioned between the conductive pads ( ) and ( ), thus forming one set of pads. In the case of the conductive pads ( ), ( ) and ( ) of another adjacent set, the pad ( ) which transmits a &minus; differential signal is disposed on the same side as the pad ( ) of the previous set which transmits the same &minus; differential signal. The pad ( ) used for grounding is disposed on the opposite side from the pads ( ) and ( ). The pad of a third set which is adjacent to the pad ( ) that transmits a &plus; differential signal is a pad that transmits the same &plus; differential signal. As a result, signal crosstalk is reduced.

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Kanagawa, Japan

Takaki Naito