Patent ID: 7841905
Filing Date: 2010-11-30
Classification: H01R

Abstract:
1. An electrical connector for being mounted on a PCB, defining a receiving space for receiving a plug and comprising: an insulative housing including a horizontal tongue portion protruding into the receiving space and being parallel to the PCB, the tongue portion defining a mating face, a plurality of depressions defined in a front region of the mating face, and a plurality of passageways defined in a rear region of the mating face and being spaced away from the depressions; and a plurality of contacts held in the tongue portion and comprising a plurality of first and second contacts, the first contacts having elastic first contact portions being movably received in the passageways and protruding beyond the mating face and into the receiving space, first tail portions for being mounted on the PCB, and first connecting portions located between the first contact portions and the first tail portions and extending along the tongue portion, the second contacts having stiff second contact portions received in the depressions and essentially located in front of the first contact portion and exposed to the receiving space, second tail portions for being mounted on the PCB, and second connecting portions located between the second contact portions and the second tail portions and being parallel to the first connecting portions; wherein the tongue portions comprises a plurality of ribs in condition that each of the depressions is formed between the adjacent two ribs, the ribs extending beyond the first contact portions; wherein the first and second tail portions are perpendicular to the first and second connecting portions to be mounted through holes of the PCB, the first tail portions and the second tail portions being arranged in front, middle and rear transverse rows along a front-to-back direction; wherein the first contacts include a first pair of differential contacts, and a first grounding contact and a power contact located at two sides of the first pair of differential contacts, the second contacts include a second pair of differential contacts, a third pair of differential contacts, and a second grounding contact located between the second and third pair of differential contacts, the tail portions of the second pair of differential contacts, the first pair of differential contacts, and the third pair of differential contacts are arranged in a sequence along a transverse direction perpendicular to said front-to-back direction, under a condition that crosstalk between the first and second pairs of differential contacts is reduced by the power contact and the second grounding contact, and crosstalk between the first and third pairs of differential contacts is reduced by the first and second grounding contacts; wherein a total amount of both said first contacts and said second contacts are nine wherein at least the one of the first tail portion of said power contact, the first tail portion of said first grounding contact and the second tail portion of said second grounding contact is located in the middle transverse row; wherein both the first tail portions of said first contacts and the second tail portions of the second contacts are essentially arranged symmetrically with regard to the second tail portion of the second grounding contact in said transverse direction while asymmetrically in the front-to-back direction.