Electrical connector having variable length mounting contacts

1. An electrical connector for mounting on a circuit board having first and second vias, the electrical connector comprising:

a housing having a mounting face for mounting along the circuit board, the housing comprising a plurality of individual contact modules; and

first and second terminals held by at least one of the contact modules of the housing, the first and second terminals comprising respective first and second mounting contacts extending outward from the mounting face of the housing, the first and second mounting contacts being configured to be received within the first and second vias, respectively, of the circuit board, wherein the first and second mounting contacts extend different first and second lengths, respectively, from the mounting face of the housing, the housing holding a third terminal that comprises a third mounting contact extending outward from the mounting face of the housing, the third mounting contact extending a third length from the mounting face of the housing, the third length being different than the first and second lengths.

2. The electrical connector according to claim 1 , wherein the housing holds fourth and fifth terminals, the first and fourth terminals being arranged as a first differential pair and the second and fifth terminals being arranged as a second differential pair.

3. The electrical connector according to claim 1 , wherein the housing holds fourth and fifth terminals, the first and fourth terminals being arranged as a first differential pair and the second and fifth terminals being arranged as a second differential pair, the fourth terminal comprising a fourth mounting contact that extends approximately the first length from the mounting face of the housing, the fifth terminal comprising a fifth mounting contact that extends approximately the second length from the mounting face of the housing.

4. The electrical connector according to claim 1 , wherein the housing comprises a mating face for mating with another electrical connector, the first and second terminals comprising respective first and second mating contacts extending along the mating face of the housing, the first and second mating contacts being configured to engage electrical contacts of the other electrical connector.

5. The electrical connector according to claim 1 , wherein the housing comprises a mating face for mating with another electrical connector, the first and second terminals comprising respective first and second mating contacts extending along the mating face of the housing, the first and second mating contacts being configured to engage electrical contacts of the other electrical connector, wherein the mating face is oriented approximately perpendicular or approximately parallel to the mounting face.

6. The electrical connector according to claim 1 , wherein the mounting contacts comprise press-fit contacts.

7. A contact module for an electrical connector, said contact module comprising:

a housing having a mounting face for mounting along a circuit board; and

a lead frame held by the housing, the lead frame comprising first and second signal terminals comprising respective first and second mounting contacts extending outward from the mounting face of the housing, the first and second mounting contacts being configured to be electrically connected to the circuit board, wherein the first mounting contact extends a different length from the mounting face of the housing than the second mounting contact, wherein the different lengths of the first and second mounting contacts are first and second lengths, respectively, the housing holding a third signal terminal that comprises a third mounting contact extending outward from the mounting face of the housing, the third mounting contact extending a third length from the mounting face of the housing, the third length being different than the first and second lengths.

8. The contact module according to claim 7 , wherein the lead frame further comprises fourth and fifth signal terminals, the first and fourth signal terminals being arranged as a first differential pair and the second and fifth signal terminals being arranged as a second differential pair.

9. The contact module according to claim 7 , wherein the lead frame further comprises fourth and fifth signal terminals, the first and fourth signal terminals being arranged as a first differential pair and the second and fifth signal terminals being arranged as a second differential pair, the fourth signal terminal comprising a fourth mounting contact that extends approximately the first length from the mounting face of the housing, the fifth signal terminal comprising a fifth mounting contact that extends approximately the second length from the mounting face of the housing.

10. The contact module according to claim 7 , wherein the housing comprises a mating face for mating with another electrical connector, the first and second signal terminals comprising respective first and second mating contacts extending along the mating face of the housing, the first and second mating contacts being configured to engage electrical contacts of the other electrical connector.

11. The contact module according to claim 7 , further comprising the circuit board, wherein the circuit board comprises first, second, and third vias each extending at least partially through the circuit board, at least one of the first, second and third vias comprising a smaller diameter portion and a larger diameter portion, the smaller diameter portion comprising an electrical conductor.

12. An electrical connector assembly comprising:

a circuit board comprising first and second vias each extending at least partially through the circuit board, wherein at least one of the first via and the second via comprises a smaller diameter portion and a larger diameter portion; and

an electrical connector configured to be mounted on the circuit board, the electrical connector comprising:

a housing having a mounting face configured to be mounted along the circuit board; and

first and second signal terminals held by the housing, the first and second signal terminals comprising respective first and second mounting contacts extending outward from the mounting face of the housing, the first and second mounting contacts being configured to be received within the first and second vias, respectively, of the circuit board, wherein the first and second mounting contacts are configured to extend different depths into the respective first and second vias of the circuit board.

13. The electrical connector assembly according to claim 12 , wherein electrical connector is mounted on the circuit board, the circuit board comprising a surface, the first mounting contact extending into the first via a first depth relative to the surface of the circuit board, the second mounting contact extending into the second via a second depth relative to the surface of the circuit board, the first depth being different than the second depth.

14. The electrical connector assembly according to claim 12 , wherein the circuit board comprises a surface, the first and second vias comprising respective first and second electrical conductors having respective first and second electrical contact portions, the first and second mounting contacts being configured to engage and electrically connect to the respective first and second electrical contact portions, wherein the first and second electrical contact portions are located within the respective first and second vias at different depths relative to the surface of the circuit board.

15. The electrical connector assembly according to claim 12 , wherein the circuit board comprises a surface, the first and second vias comprising respective first and second smaller diameter portions and respective first and second larger diameter portions, the first and second smaller diameter portions each comprising an electrical conductor, wherein the first and second smaller diameter portions are located within the respective first and second vias at different depths relative to the surface of the circuit board.

16. The electrical connector assembly according to claim 12 , wherein the circuit board comprises opposite first and second surfaces, the electrical connector being configured to be mounted on the first surface, the first via comprising a smaller diameter portion comprising an electrical conductor and a larger diameter portion extending between the smaller diameter portion and the first surface.

17. The electrical connector assembly according to claim 12 , wherein the circuit board comprises opposite first and second surfaces, the electrical connector being configured to be mounted on the first surface, the first via comprising a smaller diameter portion comprising an electrical conductor, the first via comprising a first larger diameter portion extending between the smaller diameter portion and the first surface and a second larger diameter portion extending between the smaller diameter portion and the second surface.

18. The electrical connector assembly according to claim 12 , wherein the housing comprises a mating face for mating with another electrical connector, the first and second signal terminals comprising respective first and second mating contacts extending along the mating face of the housing, the first and second mating contacts being configured to engage electrical contacts of the other electrical connector.