A modular electrical connector facilitates low loss connections to components on a printed circuit board. A portion is of the connector is formed of one or more first type units with conductive elements designed to be attached to a printed circuit board. Signals passing through those units may be routed to components on the printed circuit board through traces in the board. One or more second type units may be integrated with the connector. Those units may be designed for attachment to a cable, which may provide signal paths to a location on the printed circuit board near relatively distant components.

A modular electrical connector with modular components suitable for assembly into a right angle connector may also be used in forming an orthogonal connector or connector in other desired configurations. The connector modules may be configured through the user of extender modules. Those connector modules may be held together as a right angle connector with a front housing portion, which, in some embodiments, may be shaped differently depending on whether the connector modules are used to form a right angle connector or an orthogonal connector. When designed to form an orthogonal connector, the extender modules may interlock into subarrays, which may be held to other connector components through the use of an extender shell. The mating contact portions on the extender modules may be such that a right angle connector, similarly made with connector modules, may directly mate with the orthogonal connector.

A modular electrical connector with modular components suitable for assembly into a right angle connector may also be used in forming an orthogonal connector or connector in other desired configurations. The connector modules may be configured through the user of extender modules. Those connector modules may be held together as a right angle connector with a front housing portion, which, in some embodiments, may be shaped differently depending on whether the connector modules are used to form a right angle connector or an orthogonal connector. When designed to form an orthogonal connector, the extender modules may interlock into subarrays, which may be held to other connector components through the use of an extender shell. The mating contact portions on the extender modules may be such that a right angle connector, similarly made with connector modules, may directly mate with the orthogonal connector.

Provided is a technical system by which the impedance mismatch of the plug unit of a connector can be suppressed. A plug unit of a connector includes: a plurality of contacts; and a housing having a base portion provided with a plurality of through holes into which the plurality of contacts are inserted, and a header that protrudes from the base portion and is provided with a plurality of slits holding portions of the plurality of contacts exposed toward the header side from the through holes. A portion of the contact inserted into the through hole and a portion of the contact held by the slit are formed in a linear shape.

A connector (10) is to be connected to an end part of a cable (90). The cable (90) is formed by covering outer peripheries of at least two twisted wires (91) by an outer coating (92). The connector includes a conductive tubular portion (32) and an outer housing (60). The wires (91) are inserted into the tubular portion (32). The tubular portion (32) includes a suppressing portion (35) having an outer surface recessed from an outer surface of the tubular portion (32) and an inner surface projecting further toward the wires (91) than an inner surface of the tubular portion (32). The outer housing (60) includes an accommodating portion (62) for accommodating the tubular portion (32). The accommodating portion (62) includes a locking portion (66) to be fit into a recessed part of the suppressing portion (35) in an intersecting direction intersecting a withdrawing direction of the tubular portion (32).

A connector (10) is to be connected to an end part of a cable (90). The cable (90) is formed by covering outer peripheries of at least two twisted wires (91) by an outer coating (92). The connector includes a conductive tubular portion (32) and an outer housing (60). The wires (91) are inserted into the tubular portion (32). The tubular portion (32) includes a suppressing portion (35) having an outer surface recessed from an outer surface of the tubular portion (32) and an inner surface projecting further toward the wires (91) than an inner surface of the tubular portion (32). The outer housing (60) includes an accommodating portion (62) for accommodating the tubular portion (32). The accommodating portion (62) includes a locking portion (66) to be fit into a recessed part of the suppressing portion (35) in an intersecting direction intersecting a withdrawing direction of the tubular portion (32).

Electrical connectors for very high speed signals, including signals at or above 112 Gbps. Effectiveness of shielding along the signal paths through the mating electrical connectors may be enhanced through the use of one or more techniques, including enabling two-sided shielding, connections between shield members and between shield members and grounded structures of printed circuit boards to which the connectors are mounted, and selective positioning of lossy material. Such techniques may be simply and reliably implemented in high density connector using one or more techniques. An electrical connector may include core members held by a housing together with leadframe assemblies attached to the core members. The core members may include features that would be difficult to mold in a housing and may include both shields and lossy materials in locations that would be difficult to incorporate in a leadframe assembly.

Electrical connectors for very high speed signals, including signals at or above 112 Gbps. Effectiveness of shielding along the signal paths through the mating electrical connectors may be enhanced through the use of one or more techniques, including enabling two-sided shielding, connections between shield members and between shield members and grounded structures of printed circuit boards to which the connectors are mounted, and selective positioning of lossy material. Such techniques may be simply and reliably implemented in high density connector using one or more techniques. An electrical connector may include core members held by a housing together with leadframe assemblies attached to the core members. The core members may include features that would be difficult to mold in a housing and may include both shields and lossy materials in locations that would be difficult to incorporate in a leadframe assembly.

A circuit board has an electrical circuit and a connector that is attached to the circuit board. The connector has metal contacts. A housing of the connector has an embedded reference metal layer that is disposed under a single-ended metal contact or differential metal contacts. The reference metal layer sets the impedance of the single-ended metal contact or the differential metal contacts.

An electrical connector includes: an insulating housing defining a mating face, a card slot, and two side walls at opposite sides of the card slot, each of the side walls defining signal passageways and grounding passageways; two rows of terminals located on the side walls and each row of terminal including signal terminals in the signal passageways and grounding terminals in the grounding passageways, the terminals including retaining portions retained in the passageways and elastic arms with contacting portions extending into the card slot; and a one-piece inserting member assembled in the insulating housing, wherein the inserting member defines plural first inserting portions inserted in the signal passageways and plural second inserting portions inserted in the grounding passageways, the second inserting portions contact corresponding grounding terminals, respectively, to establish a grounding path.