| 摘要 |
A connector includes an insulative housing and rows of contacts with downwardly projecting lower ends soldered to contact pads on a circuit board, which assures engagement of all contact lower ends with all contact pads despite tolerance buildup due to housing warping. Each contact has upper and lower contact elements (50, 52) biased apart by a coil spring (54). When the connector is placed on a circuit board (14), the connector is moved down until spacers (92) on the housing lower surface engage the circuit board and cause the lower ends of all contacts to be upwardly deflected to firmly engage the contact pads for reliably soldering to them. One of the contact elements has a pair of beams (110, 112) that are slideably engaged in a cylindrical hole (130) in the other contact element to assure good electrical contact and to avoid large inductances that would arise if most currents passed through the coil spring.
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