Electrical connectors

A double-deck receptacle connector, comprising:

• an insulative housing defining a front upper mating port, a front lower mating port, and a rear connecting port along the front-to-back direction, both of the front upper mating port and the front lower mating port defining a plurality of upper passageways and a plurality of lower passageways with a receiving slot therebetween in the vertical direction perpendicular to said front-to-back direction, the upper passageways being respectively offset from the corresponding lower passageways in a transverse direction perpendicular to both said front-to-back direction and said vertical direction;
• a lower IMLA (Insert Molded Lead-Frame Assembly) assembled within the rear connecting port and including a plurality of lower wafers stacked with one another along the transverse direction, each of said lower wafers including a lower insulator equipped with a front upper contact disposed in the corresponding upper passageway of the lower mating port, a rear upper contact located behind the corresponding upper passageway, a front lower contact disposed in the corresponding lower passageway of the lower mating port, and a rear lower contact located behind the corresponding lower passageway;
• an upper IMLA assembled within the rear connecting port and stacked with the lower IMLA, the upper lower IMLA including a plurality of upper wafers stacked with one another along the transverse direction, each of said upper wafers including an upper insulator equipped with a front upper contact disposed in the corresponding upper passageway of the upper mating port, a rear upper contact located behind the corresponding upper passageway, a front lower contact disposed in the corresponding lower passageway of the lower mating port, and a rear lower contact located behind the corresponding lower passageway.

A receptacle connector comprising:

• an insulative housing defining a front mating port and a rear connecting port along the front-to-back direction, the front mating port defining a plurality of upper passageways and a plurality of lower passageways with a receiving slot therebetween in the vertical direction perpendicular to said front-to-back direction, the upper passageways being respectively offset from the corresponding lower passageways in a transverse direction perpendicular to both said front-to-back direction and said vertical direction;
• an IMLA (Insert Molded Lead-Frame Assembly) assembled within a space of the rear connecting port and including a plurality of wafers stacked with one another along the transverse direction, each of said wafers including an insulator equipped with a front upper contact disposed in the corresponding upper passageway, a rear upper contact, a front lower contact disposed in the corresponding lower passageway, and a rear lower contact;
• wherein
• in each wafer, both said front upper contact and the rear upper contact have corresponding resilient contacting sections at a first vertical plane while both said front lower contact and said rear lower contact have corresponding resilient contacting sections are a second vertical plane spaced from the first vertical plane in the transverse direction.