An electrical connector is provided. The electrical connector includes a metal plate, a first-row terminal assembly, and a second-row terminal assembly. A hollow area of the metal plate has a first projection area on a projection plane that is parallel to the metal plate, and a contact area of the second power terminal set has a second projection area overlapping the first projection area on the projection plane. The first projection area has a first border line and a second border line. The second projection area has a third border line and a fourth border line. The first border line and the third border line have a first projection distance therebetween. The second border line and the fourth border line have a second projection distance therebetween. The first projection distance and the second projection distance are both 0.2 mm or more.

An electrical connector is provided. The electrical connector includes a metal plate, a first-row terminal assembly, and a second-row terminal assembly. A hollow area of the metal plate has a first projection area on a projection plane that is parallel to the metal plate, and a contact area of the second power terminal set has a second projection area overlapping the first projection area on the projection plane. The first projection area has a first border line and a second border line. The second projection area has a third border line and a fourth border line. The first border line and the third border line have a first projection distance therebetween. The second border line and the fourth border line have a second projection distance therebetween. The first projection distance and the second projection distance are both 0.2 mm or more.

An electronic assembly including motherboard, first slide rail, second slide rail, expansion card and engagement component. Motherboard includes main circuit board and first connector. First and second slide rails are fixed on main circuit board. First slide rail has first engagement hole. Expansion card includes expansion circuit board and second connector. Expansion circuit board is disposed on first and second slide rails and has first positioning recess. Second connector is plugged into first connector. Engagement component includes connecting portion, first movable end portion, second movable end portion, first protruding portion, and second protruding portion. First and second movable end portions are respectively connected to two opposite sides of connecting portion. First protruding portion protrudes from first movable end portion and is removably engaged with first positioning recess. Second protruding portion protrudes from second movable end portion and is removably engaged with first engagement hole.

An Insulation Displacement Contact Compliant connector system (IDCC) which includes a housing, header pins, and a Printed Circuit Board (PCB). Each header pin has at least a single barb to be retained into the housing. Each pin has a blade for contacting a wire. A compliant feature on the pin retains itself into holes in the PCB. The housing has a negative space similarly shaped to the pin. The housing includes a strain relief which provides a lead-in for a wire. When the system is fully assembled, the pins reside in the housing, and exit through the housing and into and through respective holes in the PCB. A wire can be inserted into the housing once the pins reside in the housing. There are several options for the assembly process including a) a pin-to-housing insertion process; b) a housing assembly-to-PCB process or a connector-to-PCB process; and c) a wired housing assembly-to-PCB assembly process or a wire harness-to-PCB assembly process.

A wiring base includes an insulation base having a first surface, a first differential-wiring channel, and a second differential-wiring channel. The first and the second differential-wiring channels are on the first surface and arranged side by side in a first direction. The first differential-wiring channel includes a pair of first signal conductors extending in a second direction intersecting the first direction and a pair of first grounding conductors extending along the first signal conductors with the first signal conductors being interposed therebetween. The second differential-wiring channel includes a pair of second signal conductors extending in the second direction and a pair of second grounding conductors extending along the second signal conductors with the second signal conductors being interposed therebetween. The wiring base further includes a first film extending in the second direction and positioned between first and second grounding conductors adjacent to each other in plan of the first surface.

A terminal 1 is made of a rectangular wire material, extends in a front-rear direction and is provided with a terminal body 2, a pair of first projections 3 provided to project toward both left and right sides from both side surfaces 2A of the terminal body 22, and a pair of second projections 4 provided to project toward both left and right sides from the both side surfaces 2. A of the terminal body 2 and disposed behind the pair of first projections 3. The pair of second projections 4 are continuously and integrally formed with the pair of first projections 3. A maximum projecting dimension X2max of the second projection 4 from the side surface 2A of the terminal body 2 is larger than a maximum projecting dimension X1max of the first projection 3 from the side surface 2A of the terminal body 2.

A terminal 1 is made of a rectangular wire material, extends in a front-rear direction and is provided with a terminal body 2, a pair of first projections 3 provided to project toward both left and right sides from both side surfaces 2A of the terminal body 22, and a pair of second projections 4 provided to project toward both left and right sides from the both side surfaces 2. A of the terminal body 2 and disposed behind the pair of first projections 3. The pair of second projections 4 are continuously and integrally formed with the pair of first projections 3. A maximum projecting dimension X2max of the second projection 4 from the side surface 2A of the terminal body 2 is larger than a maximum projecting dimension X1max of the first projection 3 from the side surface 2A of the terminal body 2.

A connector assembly comprises a first connector and a second connector. The first connector includes a first housing and first connection terminals. The first housing defines a receiving cavity with an open upper end. A second connector includes a second housing and second connection terminals. The second housing is adapted to be partially inserted into the receiving cavity such that the second connection terminals electrically contact with the first connection terminals. The second housing defines an oblique-insertion restriction structure protruding from a remaining uninserted portion of the second housing. The restriction structure is sized and positioned to abut against an upper end surface of the first housing in a condition in which the second housing is inserted into the receiving cavity in an oblique posture relative to the first housing.

An optical integration device includes a first circuit layer comprising a first surface adjacent a first diffractive layer, the first diffractive layer arranged on a side of the first circuit layer along a first direction, and a first connecting pad electrically connected with the first circuit layer through a first conductive member. The optical integration device includes a side surface extending along the first direction. The side surface defines a first concavity extending through the first diffractive layer along the first direction. The first connecting pad includes a first mounting member connected with the side surface, and a first convex member extending from the first mounting member and received in the first concavity. The first conductive member includes a first conductive part arranged between the side surface and the first mounting member, and a second conductive part arranged between the first surface and the first convex member.

A connection unit includes a plurality of connection elements arranged next to one another. Each connection element has a conductor connection opening for accommodating an electrical conductor and an actuating element for clamping the electrical conductor in the conductor connection opening and/or releasing said conductor. The actuating elements and the conductor connection openings are arranged on a common side of the connection unit. The actuating elements and the conductor connection openings of the connection elements are arranged in two rows which are spaced apart from one another. The connection unit has at least one first connection element of which the actuating element is arranged in a first row and the conductor connection opening is arranged in a second row, and at least one second connection element of which the actuating element is arranged in the second row and of which the conductor connection opening is arranged in the first row.