Surface mount HDI contact.

摘要

An electrical pin header connector (2) comprises an insulating housing (4) having an interface surface (6) and an opposite mating face (8), between which extends a grid array of electrical contact element receiving cavities (10). in each cavity (10) is an electrical contact element (12) having an elongate contact spring (14) with a contact nose (16) projecting from the interface surface (6) for engagement by a respective contact pad (44) of a grid array of contact pads (44) on an interface surface (42) of a mother printed circuit board. Each contact element (12) has a contact pin (26) projecting from the mating face (8) of the housing (4). The contact springs (14) are angled by 45 DEG with respect to X and y axes of the grid array of cavities (10), for maximum contact density. The contact pin (26) of each contact element (12) has been twisted through 45 DEG with respect to the contact spring (14) thereof so that opposed flat contact surfaces (C) of the contact pin (26) are parallel to one axis of the grid array of cavities (10) and are at right angles to the other. This orientation of the contact surfaces (C) enables the pin header connector (2) to be mated with a mating connector having twin contact beam terminals so that each contact surface of each pair of twin beams engages a respective contact surface (C) of a respective contact pin (26).