Abstract: A circuit board (100) includes a first shielding layer (20) extending horizontally, an accessorial shielding layer, a signal circuit layer (3) positioned between the first shielding layer and the accessorial shielding layer, and a circumferential shielding layer (6) surrounding the circuit board and electrically connecting with the first shielding layer and the accessorial shielding layer to improve shielding effect.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) that are physically separated from and electrically connected to opposite ends of the second wire (53).

Abstract: An electrical connector (100) to be mounted on a substrate provides signal channels between a first side and a second side. The electrical connector includes a transformer (210), a common mode filter (327) and a separated filter (328). The transformer includes a first wire (314) having two opposite ends electrically connected to said first side and a second wire (312) having two opposite ends and a center tap (313). The common mode filter includes a third wire (322) and a fourth wire (324), each of the third wire (322) and the fourth wire (324) having an end respectively electrically connected to the two opposite ends of the second wire (312). The separated filter (328) includes a fifth wire (326) separated from the common mode filter (327) and the transformer (310), the fifth wire (326) having an end electrically connected to the center tap (313) of the second wire (312). Opposite ends of the third, the fourth and the fifth wires (322, 324, 326) are electrically connected to the second side.

Abstract: An electrical connector (100) includes an insulative housing (11), a terminal module received in the insulative housing and a shielding shell (17) enclosing the insulative housing. The terminal module having an inner circuit board (130) and a number of magnetic coils (132). The inner circuit board defines a groove (1300). Each of magnetic coils includes a core and a number of wires wound on the core and electrically connected with the inner circuit board. Each magnetic coil is at least partially received in the groove to save space for reducing profile of the connector.

Abstract: An electrical connector (100) includes an insulative housing (10) and a terminal module (20) received in the insulative housing. The terminal module includes a daughter board (21), a choke group, a number of mating terminals (24) mounted on a first side of the daughter board, and a connecting module (22) mounted on a second side the daughter board and having a number of connecting terminals (221). The choke group has a number of transformer chokes (23) mounted to the second side of the daughter board, and a number of surface mount device chokes (25) adapted for being applied in automatic manufacture and mounted the second side of the daughter board.

Abstract: A modular jack connector (100) includes a contact module (2) having a paddle board (22) formed with two conductive sections (28b). The contact module includes two transformers (24) each including a magnetic core (271) embedded in the paddle board, and a number of PCB layout traces distributed in the paddle board and including a first group of PCB layout traces having one group of tips extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips connected to the conductive section, and a second group of PCB layout traces having one group of tips extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips connected to the vias. The common mode chokes are surface mounted on the conductive section.

Abstract: A transformer (100) includes a bar-shaped core (5), a number of coils (7) comprising a first winding group (71, 72) and a second winding group (73, 74) wound around the core, a housing (1) receiving the core and the coils, and a number of conductive terminals (3) being secured in the housing. The first winding group and the second winding group wound around different parts of the core. The coils are soldered to the conductive terminals (3). The coils (7) are wound around the core automatically by an automatic winder. Therefore, the cost of manufacturing the transformer is decreased.

Abstract: A modular jack connector (100) includes a contact module (2) having a paddle board (21) and a magnetic module (23). The magnetic module includes a number of magnetic cores (231) embedded in the paddle board, and a number of PCB layout traces (232, 233) arranged in each side face of the paddle board. The PCB layout traces on each side face includes a primary group of PCB layout traces (232a, 233a) having one group of tips (2322, 2331) extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips (2321, 2332) connected to a conductive section (2111, 2121) of the paddle board, and a secondary group of PCB layout traces (232b, 233b) having one group of tips (2323, 2333) extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips (2324, 2334) connected to vias of the paddle board.

Abstract: A magnetic element (100) includes a board unit (2) including a paddle board (21) having a row of first conductive vias (251) and a row of second conductive vias (252) for insertion of terminals (3), a number of embedded magnetic components (22), and a number of SMDs (surface mount devices) (23) mounted on the paddle board by SMT (surface mount technology). Each embedded magnetic component includes a magnetic core (221) embedded in the paddle board, and a number of PCB (printed circuit board) layout traces (222) disposed in the paddle board. Each PCB layout trace includes a first PCB layout trace (222a) encircling around the magnetic core and connecting with the first conductive via, and a second PCB layout trace (222b) encircling around the magnetic core and connecting with the SMD.

Abstract: A choke module (100) for an insulative housing (2) includes a first and a second walls (23, 24) defining a first and a second receiving cavities (28, 29); a first set of contact terminals (4) arranged in the first wall, a second set of contact terminals (4) arranged in the second wall, a third set of contact terminals (5) disposed in the partition, a paddle board (6) having a number of conductive traces and attached to the insulative housing to interconnect the first and third set of contact terminals, a number of chokes (8) wound with wires which interconnects the first and second sets of contact terminals. The first and second contact terminal has a first and a second soldering portion (42) extending out of the housing and a first and a second mating portion (41) at the first wall.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.

Abstract: A modular jack connector (100) includes a contact module (2) having a paddle board (22) formed with two conductive sections (28b). The contact module includes two transformers (24) each including a magnetic core (271) embedded in the paddle board, and a number of PCB layout traces distributed in the paddle board and including a first group of PCB layout traces having one group of tips extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips connected to the conductive section, and a second group of PCB layout traces having one group of tips extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips connected to the vias. The common mode chokes are surface mounted on the conductive section.

Abstract: A modular jack connector (100) includes a contact module (2) having a paddle board (21) and a magnetic module (23). The magnetic module includes a number of magnetic cores (231) embedded in the paddle board, and a number of PCB layout traces (232, 233) arranged in each side face of the paddle board. The PCB layout traces on each side face includes a primary group of PCB layout traces (232a, 233a) having one group of tips (2322, 2331) extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips (2321, 2332) connected to a conductive section (2111, 2121) of the paddle board, and a secondary group of PCB layout traces (232b, 233b) having one group of tips (2323, 2333) extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips (2324, 2334) connected to vias of the paddle board.

Abstract: An electrical connector assembly has an insulative housing (2) defining a number of receiving spaces (24) and a number of contact modules (4) inserted in the receiving spaces. Each contact module comprises a first substrate (41) having a pair of substrate halves (411), and a pair of conductive units respectively mounted on corresponding substrate halves. The first substrate has a number of circuit traces formed thereon and one electronic component (415) disposed on one substrate half. The circuit traces is electrically connected with the pair of conductive units and the electronic component. The pair of conductive units share the electronic component commonly via the circuit traces.

Abstract: An electrical connector (100) to be mounted on a substrate provides signal channels between a first side and a second side. The electrical connector includes a transformer (210), a common mode filter (327) and a separated filter (328). The transformer includes a first wire (314) having two opposite ends electrically connected to said first side and a second wire (312) having two opposite ends and a center tap (313). The common mode filter includes a third wire (322) and a fourth wire (324), each of the third wire (322) and the fourth wire (324) having an end respectively electrically connected to the two opposite ends of the second wire (312). The separated filter (328) includes a fifth wire (326) separated from the common mode filter (327) and the transformer (310), the fifth wire (326) having an end electrically connected to the center tap (313) of the second wire (312). Opposite ends of the third, the fourth and the fifth wires (322, 324, 326) are electrically connected to the second side.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.

Abstract: A choke module (100) for an insulative housing (2) includes a first and a second walls (23, 24) defining a first and a second receiving cavities (28, 29); a first set of contact terminals (4) arranged in the first wall, a second set of contact terminals (4) arranged in the second wall, a third set of contact terminals (5) disposed in the partition, a paddle board (6) having a number of conductive traces and attached to the insulative housing to interconnect the first and third set of contact terminals, a number of chokes (8) wound with wires which interconnects the first and second sets of contact terminals. The first and second contact terminal has a first and a second soldering portion (42) extending out of the housing and a first and a second mating portion (41) at the first wall.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) that are physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.

Abstract: The present invention provides an electrical connector (100) including a magnetic module (200) for noise-filtering. The magnetic module (200) includes an interior printed circuit board (21), a common mode choke and a number of transformers mounted on the interior printed circuit board (21). Each of said common mode choke and transformers has a magnetic core (20,22) and a number of magnetic wires (23) winding around the magnetic cores (20,22), wherein the magnetic core (20) of the common mode choke defines two holes (203,205) parallel extending therethrough and forms a center wall (201) therebetween. The magnetic wires (23) of the common mode choke wind around the center wall (201) and through said two holes (203,205) in a same direction.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.