An electrical connector assembly includes a first electrical connector and a second electrical connector configured to be mated with the first electrical connector. The first electrical connector includes a connector housing and first receptacle contacts having inner projections that secure the electrical contacts to the connector housing. The connector housing can include a plurality of divider walls that protect the mating ends of the receptacle contacts. The second electrical connector includes a second connector housing and a plurality of second electrical contacts supported by the second connector housing. The second electrical contacts can define paddle-shaped mating ends.

An improved structure of an electrical connector generally includes a shielding enclosure, at least one insulation body, an upper transmission conductor assembly, and a lower transmission conductor assembly. The upper and lower transmission conductor assemblies include an upper grounding terminal assembly, an upper power terminal assembly, a lower grounding terminal assembly, and a lower power terminal assembly, of which each terminal assembly defines a soldering section, an extension section, and a contact section. The soldering section has a width from 0.35 mm to 0.45 mm and a thickness from 0.15 mm to 0.25 mm. The extension section has a width from 0.35 mm to 0.45 mm and a thickness from 0.15 mm to 0.25 mm. The contact section has a width from 0.195 mm to 0.295 mm and a thickness from 0.15 mm to 0.25 mm. With such an arrangement, electrical current loading of the terminals can be effectively increased to meet the need for a large current without increasing noise interference.

A cable connection board includes a signal layer disposed inside a board, a first layer and a second layer disposed inside the board with the signal layer being interposed therebetween, a cable coupled to the board so as to extend to a first surface of the board, a first solder joint portion that joins an outer conductor included in the cable and the first layer to each other, and a second solder joint portion that joins a front end of an inner conductor included in the cable and the signal layer to each other in the board.

A connector assembly comprises a circuit board having a front side and a back side, with a connector installed on the front side of the circuit board. A plurality of first welding pads are formed on the front side of the circuit board, and a plurality of second welding pads are formed on the back side of the circuit board. A plurality of wires are connected to the circuit board, with a first portion thereof connected to the first welding pads and a second portion thereof connected to the second welding pads. Each of the plurality of wires extend away from the circuit board from above the front side of the circuit board.

The optical electronic part includes an insulating case that makes a built-in photoelectric conversion element face upward and includes a flange portion protruding along a horizontal plane, and a conductive pad that is exposed in an outer surface of the insulating case, the outer surface being parallel to the horizontal plane. The socket includes a guide portion that slidably guides the flange portion along the horizontal plane, and a contact that is fixed to a connection area of a housing opposed to the outer surface in which the conductive pad is exposed, the contact including a contact portion located in a movement locus of the conductive pad sliding with the flange portion along the horizontal plane. As the insulating case is operated to slide, the contact makes sliding contact with the conductive pad to provide a self-cleaning effect.

A board connector includes terminal fittings (60) including board connecting portions (62), and a housing (10) made of synthetic resin containing a fibrous filler (80), disposed on a circuit board (90) and including a wall (18) rising in a vertical direction intersecting a surface of the circuit board (90). The wall (18) has a terminal mounting region (21) in which the terminal fittings (60) are mounted. The wall (18) includes elongated recesses (31) with a longitudinal direction aligned with the vertical direction and arranged side by side in a width direction in a distant region (22) located on a side of the terminal mounting region (21) distant from the circuit board (90).

A board connector (10) includes a receptacle (20) fittable to a mating connector and fixing members (60) for fixing the receptacle (20) to a circuit board (90). The receptacle (20) is in the form of a rectangular tube and has a pair of side walls (21) facing each other in a width direction and a bottom wall (22) and a ceiling wall (23) facing each other in a height direction. At least either the side walls (21) or the bottom wall (22) include(s) mounting recesses (31) for mounting the fixing members (60) within a wall thickness between an inner side surface and an outer side surface of the receptacle (20).

A connector (100) comprises an insulative housing (1) and a plurality of contacts (2) assembled onto the insulative housing (1), the insulative housing (1) defining a mating surface (11), a mounting surface (12) opposite to the mating surface (11) and a plurality of contact grooves (13) passing though the mating surface (11) and the mounting surface (12). The contact (2) assembled onto the insulative housing (1) from the mounting surface (12) of the insulative housing (1), each contact (2) including a contact portion (21) received in the contact grooves (13) and a mounting portion (22) extending out of the insulative housing (1). Wherein the connector (100) further includes a shell (4) assembled to the insulative housing (1), the shell (4) includes a shielding portion (41) shielding the mounting surface (12), thereby preventing the contact (2) shedding from the insulative housing (1) or loosening in the insulative housing (1) to make the combine of the contact (2) and insulative housing (1) reliable.

Provided is a connector fitting which includes: a fixed portion provided on a side wall of a housing of a connector; and a projecting portion provided on the side wall of the housing and projecting from the side wall of the housing with respect to the fixed portion, in which the fixed portion is wider than the projecting portion, the fixed portion includes a pair of shoulder portions on both side surfaces of the fixed portion, and the shoulder portions are provided on a side surface between the fixed portion and the projecting portion.

A receptacle connector includes a receptacle contact corresponding to a plug contact, a receptacle housing that holds the receptacle contact, and an assistant fitting attached to the receptacle housing, and is mounted on a connector mounting surface of a circuit board. The assistant fitting includes at least a held portion, a fixing portion, and a vertical displacement regulating portion. The held portion is a portion that is held by the receptacle housing. The fixing portion is a portion that is hooked to the plug housing to thereby fix the plug connector to the receptacle connector. The vertical displacement regulating portion is a portion that regulates a displacement of the fixing portion in a direction away from the connector mounting surface of the circuit board.