High speed electrical connector
A connector for use with high-speed signals. The connector includes conductors held in a housing having a slot for receiving a mating component. Each conductor has a mating end curving into the slot and a mounting end extending out of the housing. The connector has a conductive shell at least partially enclosing the housing. The conductive shell covers one or more sides of the slot and substantially overlaps the mounting ends viewing from a top of the mounting interface to provide shielding to the mating and mounting interfaces. The conductive shell is coupled to ground through ground conductors of the connector. The connector has a lossy member disposed adjacent the mounting interface and coupled to the ground conductors. Such a configuration meets signal integrity requirements in connectors designed for 32 Gbps and beyond, while conforming to a standard that constrains mating and mounting interfaces.
1 . An electrical connector, comprising:
a housing comprising a slot;
a plurality of conductive elements aligned in a row direction, each of the plurality of conductive elements comprising a mating end, a mounting end, and an intermediate portion joining the mating end and the mounting end, wherein the mating end comprises a mating contact portion curving into the slot of the housing, the mounting end comprises a mounting contact portion extending out of the housing, and the plurality of conductive elements comprises signal conductors and ground conductors;
a lossy member held in the housing and disposed adjacent a mounting surface of the housing, the lossy member comprising protrusions coupled to respective ground conductors; and
a conductive shell at least partially enclosing the housing and exposing the slot, wherein the conductive shell is coupled to the ground conductors.
2 . The electrical connector of claim 1 , wherein:
the conductive shell contacts the ground conductors at respective intermediate portions and/or mounting ends.
3 . The electrical connector of claim 1 , wherein:
the housing comprises a top, bottom, front, rear, and two sides,
the front of the housing comprises an entrance to the slot,
the bottom of the housing comprises a mounting surface, and
the conductive shell at least partially covers the top, rear and two sides of the housing.
4 . The electrical connector of claim 3 , wherein:
the rear of the housing comprises openings exposing portions of the signal conductors, and
the conductive shell is spaced from the exposed portions of the signal conductors by a distance in a range of 0.2 mm to 0.5 mm.
5 . The electrical connector of claim 3 , wherein:
the conductive shell comprises members extending from the sides to the bottom, and
the members have surfaces configured for engaging contact pads of a printed circuit board to which the electrical connector is mounted.
6 . A system comprising:
the electrical connector of claim 5 ; and
a printed circuit board, wherein the members of the conductive shell of the electrical connector are soldered to contact pads of the printed circuit board.
7 . The electrical connector of claim 1 , wherein:
the housing comprises a top, bottom, front, rear, and two sides,
the front of the housing comprises an entrance to the slot,
the rear of the housing comprises a mounting surface, and
the conductive shell at least partially covers the top, bottom, and two sides of the housing.
8 . The electrical connector of claim 1 , wherein:
the intermediate portion of each of the plurality of conductive elements comprises a projection;
the conductive shell comprises a plurality of members; and
each of the plurality of members comprises a contact portion curving towards the projection of the intermediate portion of a respective conductive element.
9 . The electrical connector of claim 8 , wherein:
the plurality of members are aligned in the row direction.
10 . The electrical connector of claim 8 , wherein:
the conductive shell comprises a plurality of holes, and
the projections of the intermediate portions of the ground conductors extend through respective holes of the conductive shell.
11 . The electrical connector of claim 1 , wherein:
the electrical connector is configured to conform to electrical and mechanical requirements set by a peripheral component interface express (PCIe) Gen 5 standard.
12 . An electrical connector, comprising:
a housing comprising a mating surface exposing a slot and a mounting surface;
a plurality of conductive elements held in the housing, each of the plurality of conductive elements comprising a mating end, a mounting end, and an intermediate portion joining the mating end and the mounting end, wherein the mating end comprises a mating contact portion curving into the slot of the housing, the mounting end comprises a mounting contact portion extending out of the housing, the intermediate portion comprises a projection towards a conductive shell, and the plurality of conductive elements comprises signal conductors and ground conductors; and
the conductive shell covering one or more sides of the housing, wherein the conductive shell is coupled to the ground conductors, wherein:
the conductive shell comprises a plurality of holes; and
the projections of the intermediate portions of the ground conductors extend through respective holes of the conductive shell.
13 . The electrical connector of claim 12 , wherein:
the conductive shell comprises a plurality of members each curving towards the projection of the intermediate portion of a respective ground conductor.
14 . The electrical connector of claim 12 , comprising:
a lossy member held in the housing and disposed adjacent the mounting surface of the housing, wherein, for each of the ground conductors, the intermediate portion comprises a projection towards the lossy member.
15 . The electrical connector of claim 12 , wherein, for each of the plurality of conductive elements:
the mating end and the mounting end extend in parallel or perpendicular to each other.
16 . An electrical connector, comprising:
a housing comprising a mating surface exposing a slot and a mounting surface;
a plurality of conductive elements aligned in a row direction, each of the plurality of conductive elements comprising a mating end having a mating contact portion curving into the slot of the housing, a mounting end comprising a mounting contact portion extending out of the mounting surface of the housing, and an intermediate portion joining the mating end and the mounting end;
a conductive shell extending from the mating surface to the mounting surface, wherein a subset of the plurality of conductive elements are coupled to the conductive shell; and
a lossy member held in the housing and disposed adjacent the mounting surface of the housing, wherein the lossy member comprises protrusions contacting respective ones of the subset of the plurality of conductive elements.
17 . The electrical connector of claim 16 , wherein:
the conductive shell contacts the subset of the plurality of conductive elements at respective intermediate portions and/or mounting end.
18 . The electrical connector of claim 17 , wherein:
the conductive shell comprises a plurality of members each having a contact portion contacting a respective one of the subset of the plurality of conductive elements.
19 . The electrical connector of claim 17 , wherein, for each of the subset of the plurality of conductive elements:
the intermediate portion comprises a projection contacting the conductive shell.
20 . The electrical connector of claim 16 , wherein:
the conductive shell comprises tabs extending in parallel to the mounting surface such that the tabs are configured for surface mount soldering.