A circuit board for use in a modular electrical connector. The circuit board has a first surface and an oppositely facing second surface. Signal pathways are provided on the first surface. The signal pathways have signal pathway ends abutting a mounting end of the circuit board. First ground pathways are provided on the first surface. The first ground pathways are positioned adjacent at least one of the signal pathways. The first ground pathways have first ground pathway ends abutting the mounting end of the circuit board. One or more second ground pathways are provided on the second surface. The one or more second ground pathways have second ground pathway ends abutting the mounting end of the circuit board. The positioning of the signal pathway ends, the first ground pathway ends and the second ground pathway ends abutting the mounting end reduces crosstalk between signal pairs.

A connector including a shield case including a first shell and a second shell, a body housed in the shield case, and a terminal held by the body. The first shell includes a connecting portion of tuboid shape extending in a first direction, and a cover extending in the first direction contiguously from the connecting portion. The second shell is a separate member from the first shell and attached to the cover. The second shell and the cover constitute a composite tube extending in a second direction, which is orthogonal to the first direction, or in an oblique direction, which includes components of the first and second directions. The terminal includes a first portion, which extends in the first direction and is disposed inside the connecting portion, and a second portion, which extends in the second direction or the oblique direction and is disposed inside the composite tube.

A connector including a shield case including a first shell and a second shell, a body housed in the shield case, and a terminal held by the body. The first shell includes a connecting portion of tuboid shape extending in a first direction, and a cover extending in the first direction contiguously from the connecting portion. The second shell is a separate member from the first shell and attached to the cover. The second shell and the cover constitute a composite tube extending in a second direction, which is orthogonal to the first direction, or in an oblique direction, which includes components of the first and second directions. The terminal includes a first portion, which extends in the first direction and is disposed inside the connecting portion, and a second portion, which extends in the second direction or the oblique direction and is disposed inside the composite tube.

An electrical receptacle connector includes a metal shell, an insulation housing, upper-row plate terminals, and lower-row plate terminals. The metal shell defines a receptacle cavity to receive the insulation housing. The insulation housing includes a base portion and a tongue portion extending from one side of the base portion. The tongue portion includes an upper surface and a lower surface. The upper-row plate terminals are held on the base portion and tongue portion and include upper-row contact segments at the upper surface for transmitting first signals. The lower-row plate terminals are held on the base portion and tongue portion and include lower-row contact segments at the lower surface for transmitting second signals. The upper-row plate terminals and the lower-row plate terminals are point-symmetrical with a central point of the receptacle cavity as the symmetrical center.

An example contact head includes coaxial contacts configured for transmission of radio frequency (RF) signals or digital signals between a test system and a device under test (DUT). Each of the coaxial contacts is configured to target a specific impedance. Each of the coaxial contacts includes a coaxial structure having an open-curve shape. The coaxial structure includes a spring material that bends in response to applied force and that returns to the open-curve shape absent the applied force. The coaxial structure includes a center conductor terminating in a contact pin and a return conductor separated by a dielectric from the center conductor. At least part of the center conductor and the return conductor include an electrically-conductive material. Flexible contacts on the coaxial contact include the electrically-conductive material.

This application provides a differential pair module, including a first signal terminal and a second signal terminal. The first signal terminal includes a first signal tail part, a first signal body part, and a first signal conductive connection part that are successively connected. An extension plane of the first signal conductive connection part and an extension plane of the first signal body part form an included angle, and an extension direction of the first signal conductive connection part and an extension direction of the first signal tail part form an included angle. The second signal terminal includes a second signal tail part, a second signal body part, and a second signal conductive connection part that are successively connected. Solutions in this application can implement a PCB board connection architecture having no backplane.

This application provides a differential pair module, including a first signal terminal and a second signal terminal. The first signal terminal includes a first signal tail part, a first signal body part, and a first signal conductive connection part that are successively connected. An extension plane of the first signal conductive connection part and an extension plane of the first signal body part form an included angle, and an extension direction of the first signal conductive connection part and an extension direction of the first signal tail part form an included angle. The second signal terminal includes a second signal tail part, a second signal body part, and a second signal conductive connection part that are successively connected. Solutions in this application can implement a PCB board connection architecture having no backplane.

A fixed insulator includes a plurality of first fixing grooves disposed along an arrangement direction in which a plurality of contacts are arranged, and partition walls each disposed between two adjacent contacts. A movable insulator includes a plurality of second fixing grooves disposed along the arrangement direction. The contacts each include a first base portion supported by a corresponding one of the first fixing grooves, a second base portion supported by a corresponding one of the second fixing grooves, a first arm portion connected to the first base portion and disposed between two corresponding adjacent ones of the partition walls, and a second arm portion connected to the first arm portion and the second base portion. A largest width of the first arm portion is smaller than a largest width of the second arm portion.

A fixed insulator includes a plurality of first fixing grooves disposed along an arrangement direction in which a plurality of contacts are arranged, and partition walls each disposed between two adjacent contacts. A movable insulator includes a plurality of second fixing grooves disposed along the arrangement direction. The contacts each include a first base portion supported by a corresponding one of the first fixing grooves, a second base portion supported by a corresponding one of the second fixing grooves, a first arm portion connected to the first base portion and disposed between two corresponding adjacent ones of the partition walls, and a second arm portion connected to the first arm portion and the second base portion. A largest width of the first arm portion is smaller than a largest width of the second arm portion.

A contact device includes a first contact element extending along a straight line and a second contact element inclined with respect to the first contact element. The first contact element has a connecting body extending along the straight line, a first contact portion, and a flap. The first contact portion has a first contact socket. The flap is connected to a first fixed end at a first side of the connecting body. The first contact portion is connected to the connecting body. The flap extends along the first straight line to the first contact portion and a free end of the flap is arranged at a distance from the first contact portion. The second contact element has a second contact portion engaging the first contact socket and electrically contacting the first contact portion.