Communications connectors with staggered contacts that connect to a printed circuit board via contact pads

• US 7,427,218 B1
• Filed: 05/23/2007
• Issued: 09/23/2008
• Est. Priority Date: 05/23/2007
• Status: Expired due to Fees

• Current Assignee: CommScope Inc. (CommScope Holding Company, Inc.)
• Original Assignee: CommScope Inc. (CommScope Holding Company, Inc.)
• Inventors: Hashim, Amid I., Goodrich, Robert Ray
• Primary Examiner(s): Gushi; Ross N
• Application Number:
  US11/752,521
• Time in Patent Office: 489 Days
• Field of Search: 439/676, 439/941
• US Class Current: 439/676
• CPC Class Codes: H01R 13/6464 by adding capacitive elements
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H05K 1/0228 Compensation of cross-talk by a mutually correlated lay-out of printed circuit traces, e.g. for compensation of cross-talk in mounted connectors balanced signal pairs H05K1/0245
• CPC Class Codes: H05K 2201/09709 Staggered pads, lands or terminals; Parallel conductors in different planes
• CPC Class Codes: H05K 2201/10189 Non-printed connector

Abstract

Communications connectors having a plurality of signal carrying paths are provided that include a printed circuit board and a plurality of contacts. The printed circuit board includes a plurality of contact pads, a plurality of output terminals, and a plurality of conductive paths that connect at least some of the contact pads to respective ones of the output terminals. Each contact includes a plug contact region, a pad contact region, and a signal carrying segment that connects the plug contact region and the pad contact region. A first of the signal carrying paths extends from the plug contact region of a first of the contacts to a first of the output terminals. This signal carrying path includes the signal carrying segment of the first of the contacts, a first of the contact pads and a first of the conductive paths. Moreover, the signal carrying segment of the first of the contacts is staggered with respect to the signal carrying segment of another of the contacts that is directly adjacent to the first of the contacts.

Claims

1. A communications connector having a plurality of signal carrying paths, the communications connector comprising:

a printed circuit board that includes a plurality of contact pads, a plurality of output terminals, and a plurality of conductive paths that connect at least some of the plurality of contact pads to respective ones of the plurality of output terminals; and

a plurality of contacts, each contact having a plug contact region, a pad contact region that is arranged to mate with a respective one of the plurality of contact pads, and a signal carrying segment that connects the plug contact region and the pad contact region;

wherein a first of the plurality of signal carrying paths extends from the plug contact region of a first of the plurality of contacts to a first of the plurality of output terminals;

wherein the first of the plurality of signal carrying paths includes the signal carrying segment of the first of the plurality of contacts, a first of the plurality of contact pads and a first of the plurality of conductive paths; and

wherein the signal carrying segment of the first of the plurality of contacts is staggered with respect to the signal carrying segment of another of the plurality of contacts that is directly adjacent to the first of the plurality of contacts.

2. The communications connector of claim 1, wherein the plurality of signal carrying paths comprises first, second, third, fourth, fifth, sixth, seventh and eighth signal carrying paths, wherein the fourth and fifth signal carrying paths comprise a first pair for carrying a first balanced signal, the first and second signal carrying paths comprise a second pair for carrying a second balanced signal, the third and sixth signal carrying paths comprise a third pair for carrying a third balanced signal, the seventh and eighth signal carrying paths comprise a fourth pair for carrying a fourth balanced signal, and wherein respective segments of the third and fifth signal carrying paths run directly adjacent each other to form an inductive crosstalk compensation stage.

3. The communications connector of claim 1, further comprising a housing having a plug aperture, a second plurality of contacts and a first deflectable contact that is mounted on the printed circuit board, wherein the first deflectable contact is configured to make contact with a first of the second plurality of contacts when a mating plug is received within the plug aperture.

4. The communications connector of claim 1, wherein the pad contact region of each of the plurality of contacts is located between a free end of the contact and the plug contact region.

5. The communications connector of claim 4, wherein each of the plurality of contacts includes a mounted end that is mounted in a respective one of a plurality of metal-plated holes in the printed circuit board, and wherein the printed circuit board includes a compensation circuit that is electrically connected by respective conductive traces to at least two of the plurality of metal-plated holes.

6. The communications connector of claim 5, wherein the compensating crosstalk introduced by the compensation circuit is introduced with substantially no delay relative to the plug contact regions of the ones of the plurality of contacts to which the compensation circuit is electrically connected.

7. The communications connector of claim 1, wherein each of the plurality of contacts includes a mounted end that is mounted in a respective one of a plurality of openings in a first surface of the printed circuit board, an intermediate segment that wraps around the printed circuit board, and a free end portion that extends above a second surface of the printed circuit board that is opposite the first surface.

8. The communications connector of claim 7, further comprising a second plurality of contacts, wherein each of the second plurality of contacts includes a mounted end that is mounted in a respective one of a second plurality of metal-plated holes in the second surface of the printed circuit board.

9. The communications connector of claim 7, wherein the pad contact region of each of the plurality of contacts is part of an undulation region of each respective contact.

10. A communications connector that includes a plurality of signal carrying paths that connect a plurality of input terminals to respective ones of a plurality of output terminals, the communications connector comprising:

a printed circuit board;

a plurality of wire connection terminals mounted on the printed circuit board;

a plurality of contacts, each of the plurality of contacts having a mounted end that is mounted in the printed circuit board, a free end, and a plug contact region;

wherein each of the plug contact regions comprises one of the plurality of input terminals and each of the wire connection terminals comprises one of the plurality of output terminals;

wherein at least some of the mounted ends comprise branches off of respective ones of the plurality of signal carrying paths, and

wherein a signal carrying segment of the first of the plurality of contacts is staggered with respect to the signal carrying segment of one of the plurality of contacts that is directly adjacent to the first of the plurality of contacts.

11. The communications connector of claim 10, wherein the mounted end of each contact is mounted in a respective one of a plurality of metal-plated holes in the printed circuit board, and wherein a crosstalk compensation circuit is connected to at least some of the metal-plated holes.

12. The communications connector of claim 10, wherein the printed circuit board further comprises a plurality of contact pads, and wherein each of the plurality of contacts further includes a pad contact region that is configured to mate with a respective one of the plurality of contact pads.

13. The communications connector of claim 10, wherein each of the plurality of contacts further includes a free end, and wherein the pad contact region of each contact is between the plug contact region of the contact and the free end of the contact.

14. The communications connector of claim 10, wherein the mounted end of each contact is mounted on a first surface of the printed circuit board, and wherein each contact wraps around the printed circuit board to extend above a second surface of the printed circuit board that is opposite the first side.

15. The communications connector of claim 10, wherein each of the plurality of contacts are disposed in a generally parallel side-by-side relationship with respect to the other of the plurality of contacts from the mounted end to the plug contact region of each contact.

16. The communications connector of claim 10, wherein each of the plurality of contacts wraps around a forward edge of the printed circuit board and is free-floating adjacent the forward edge of the printed circuit board.

17. A modular jack, comprising:

a printed circuit board that includes a plurality of contact pads, a plurality of output terminals, and a plurality of conductive paths that electrically connect at least some of the plurality of contact pads to respective ones of the plurality of output terminals; and

a plurality of contacts, each contact having a mounted end, a free end and an intermediate segment extending between the mounted end and the free end;

wherein each of the plurality of contact pads are mounted to make electrical contact with the intermediate segment of respective ones of the plurality of contacts when a plug is mated with the modular jack, and

wherein the intermediate segment of a first of the plurality of contacts is staggered with respect to the intermediate segment of a second of the plurality of contacts that is immediately adjacent the first of the plurality of contacts.

18. The modular jack of claim 17, wherein the intermediate segment of each contact includes a plug contact region, and wherein the plurality of contact pads make electrical contact with the respective ones of the plurality of contacts in between the plug contact region of each contact and the free end of each contact.

19. The modular jack of claim 17, wherein the mounted end of each of the plurality of contacts is mounted in respective ones of a plurality of metal-plated holes in the printed circuit board, and wherein the printed circuit board includes a compensation circuit that is electrically connected by respective conductive traces to at least two of the plurality of metal-plated holes.

20. The modular jack of claim 17, wherein at least some of the plurality of contacts wrap around a forward edge of the printed circuit board and are free-floating adjacent the forward edge of the printed circuit board.