Abstract: A mezzanine header connector includes a contact assembly having a pair of contact modules arranged back-to-back. The contact modules each have a dielectric holder holding a plurality of header contacts. The dielectric holder extends between a mating end and a mounting end and has an inner side and an outer side. The header contacts have mating segments exposed along the outer side at the mating end for termination to corresponding receptacle contacts of a mezzanine receptacle connector. The header contacts have terminating segments extending from the mounting end of the dielectric holder for termination to a circuit board. Each of the header contacts extend along a linear path between the corresponding mating segment and the corresponding terminating segment. The inner sides of the dielectric holders of the pair of contact modules abut against each other such that the header contacts face away from each other.

Abstract: An electrical connector includes a contact module including a leadframe assembly and a dielectric frame overmolded on the leadframe assembly. The leadframe assembly includes a primary leadframe having signal conductors with transition contacts encased in the dielectric frame. At least some of the signal conductors have mating contacts extending from corresponding transition contacts configured to be electrically connected to corresponding signal contacts of a mating connector. The leadframe assembly includes a secondary leadframe is mechanically and electrically connected to the primary leadframe. The secondary leadframe has mounting segments connected to corresponding signal conductors of the primary leadframe. The secondary leadframe has mating contacts extending from corresponding mounting segments configured to be electrically connected to corresponding signal contacts of the mating connector. The secondary leadframe may be welded to the primary leadframe.

Abstract: A mezzanine connector assembly includes a mezzanine receptacle connector having a plurality of receptacle contacts arranged in pairs for carrying differential pair signals and each having a mating interface. The mezzanine receptacle connector has a plurality of receptacle ground shields surrounding each pair of receptacle contacts and providing electrical shielding from each other pair. The mezzanine connector assembly includes a mezzanine header connector having a plurality of header contacts arranged in pairs. Each header contact has a mating segment mated to the mating interface of the corresponding receptacle contact. The mezzanine header connector has a plurality of header ground shields surrounding each pair of header contacts and providing electrical shielding from each other pair of header contacts. The header ground shields are mechanically and electrically connected to associated receptacle ground shields to create shield boxes around the various mated pairs of header and receptacle contacts.

Abstract: A mezzanine receptacle connector includes a housing having a mating end configured to be mated with a mezzanine header connector and a mounting end configured to be mounted to a circuit board. The mating end is opposite the mounting end and includes a plurality of contact cavities configured to receive associated header contacts of the mezzanine header connector. Receptacle contacts are received in corresponding contact cavities of the housing. Each receptacle contact has a main contact and a sub-contact extending from the main contact. The main contact defines a first mating interface and the sub-contact defines a second mating interface. The first and second mating interfaces of each receptacle contact are configured to directly engage the same header contact of the mezzanine header connector at different points of contact.

Abstract: An electrical connector includes a contact module having a leadframe and a dielectric frame surrounding the leadframe. The leadframe has signal conductors having transition contacts encased in the dielectric frame. The transition contacts are coplanar such that the transition contacts are arranged within a contact plane of the leadframe. The signal conductors have mating contacts extending from the corresponding transition contacts. Each of the mating contacts have a mating interface configured to be electrically connected to a corresponding mating contact of a mating connector. The mating contacts are arranged in pairs with the corresponding mating interfaces aligned in rows along corresponding row axes. Each of the pairs of mating contacts are arranged in different rows.

Abstract: A mezzanine header connector includes header modules stacked side-by-side having housing frames holding contact assemblies. Each contact assembly includes header contacts held by at least one dielectric holder. The header contacts have mating segments for termination to corresponding receptacle contacts of a mezzanine receptacle connector and terminating segments for termination to a circuit board. Each of the header contacts extend along a linear path between the corresponding mating segment and the corresponding terminating segment. Each housing frame has walls defining pockets receiving corresponding header contacts of the contact assembly. The housing frame is conductive and provides shielding around the associated header contacts of the contact assemblies. The header contacts face associated walls with air separating the header contacts and the walls along a majority of the header contacts.

Abstract: An electrical connector includes a contact module having a leadframe and a dielectric frame surrounding the leadframe. The leadframe has signal conductors having transition contacts encased in the dielectric frame. The transition contacts are coplanar such that the transition contacts are arranged within a contact plane of the leadframe. The signal conductors have mating contacts extending from the corresponding transition contacts. Each of the mating contacts have a mating interface configured to be electrically connected to a corresponding mating contact of a mating connector. The mating contacts are arranged in pairs with the corresponding mating interfaces aligned in rows along corresponding row axes. Each of the pairs of mating contacts are arranged in different rows.

Abstract: A mezzanine header connector includes header modules stacked side-by-side having housing frames holding contact assemblies. Each contact assembly includes header contacts held by at least one dielectric holder. The header contacts have mating segments for termination to corresponding receptacle contacts of a mezzanine receptacle connector and terminating segments for termination to a circuit board. Each of the header contacts extend along a linear path between the corresponding mating segment and the corresponding terminating segment. Each housing frame has walls defining pockets receiving corresponding header contacts of the contact assembly. The housing frame is conductive and provides shielding around the associated header contacts of the contact assemblies. The header contacts face associated walls with air separating the header contacts and the walls along a majority of the header contacts.

Abstract: A mezzanine connector assembly includes a mezzanine receptacle connector having a plurality of receptacle contacts arranged in pairs for carrying differential pair signals and each having a mating interface. The mezzanine receptacle connector has a plurality of receptacle ground shields surrounding each pair of receptacle contacts and providing electrical shielding from each other pair. The mezzanine connector assembly includes a mezzanine header connector having a plurality of header contacts arranged in pairs. Each header contact has a mating segment mated to the mating interface of the corresponding receptacle contact. The mezzanine header connector has a plurality of header ground shields surrounding each pair of header contacts and providing electrical shielding from each other pair of header contacts. The header ground shields are mechanically and electrically connected to associated receptacle ground shields to create shield boxes around the various mated pairs of header and receptacle contacts.

Abstract: A mezzanine header connector includes a contact assembly having a pair of contact modules arranged back-to-back. The contact modules each have a dielectric holder holding a plurality of header contacts. The dielectric holder extends between a mating end and a mounting end and has an inner side and an outer side. The header contacts have mating segments exposed along the outer side at the mating end for termination to corresponding receptacle contacts of a mezzanine receptacle connector. The header contacts have terminating segments extending from the mounting end of the dielectric holder for termination to a circuit board. Each of the header contacts extend along a linear path between the corresponding mating segment and the corresponding terminating segment. The inner sides of the dielectric holders of the pair of contact modules abut against each other such that the header contacts face away from each other.

Abstract: A mezzanine receptacle connector includes a housing having a mating end configured to be mated with a mezzanine header connector and a mounting end configured to be mounted to a circuit board. The mating end is opposite the mounting end and includes a plurality of contact cavities configured to receive associated header contacts of the mezzanine header connector. Receptacle contacts are received in corresponding contact cavities of the housing. Each receptacle contact has a main contact and a sub-contact extending from the main contact. The main contact defines a first mating interface and the sub-contact defines a second mating interface. The first and second mating interfaces of each receptacle contact are configured to directly engage the same header contact of the mezzanine header connector at different points of contact.

Abstract: A mezzanine receptacle connector includes a housing having a mating end mated with a mezzanine header connector and a mounting end mounted to a circuit board. Receptacle contacts are held by the housing having mating ends with deflectable spring beams and terminating ends for termination to the circuit board. A ground lattice is held by the housing that includes longitudinal receptacle ground shields extending longitudinally within the housing generally parallel to a longitudinal axis. The ground lattice includes lateral receptacle ground shields extending laterally within the housing generally perpendicular to the longitudinal axis. The longitudinal receptacle ground shields are mechanically and electrically connected to the lateral receptacle ground shields to form the ground lattice. The ground lattice provides electrical shielding for the receptacle contacts.

Abstract: A mezzanine receptacle connector includes a housing having a mating end mated with a mezzanine header connector and a mounting end mounted to a circuit board. Receptacle contacts are held by the housing having mating ends with deflectable spring beams and terminating ends for termination to the circuit board. A ground lattice is held by the housing that includes longitudinal receptacle ground shields extending longitudinally within the housing generally parallel to a longitudinal axis. The ground lattice includes lateral receptacle ground shields extending laterally within the housing generally perpendicular to the longitudinal axis. The longitudinal receptacle ground shields are mechanically and electrically connected to the lateral receptacle ground shields to form the ground lattice. The ground lattice provides electrical shielding for the receptacle contacts.

Abstract: An electrical connector includes a contact module including a leadframe assembly and a dielectric frame overmolded on the leadframe assembly. The leadframe assembly includes a primary leadframe having signal conductors with transition contacts encased in the dielectric frame. At least some of the signal conductors have mating contacts extending from corresponding transition contacts configured to be electrically connected to corresponding signal contacts of a mating connector. The leadframe assembly includes a secondary leadframe is mechanically and electrically connected to the primary leadframe. The secondary leadframe has mounting segments connected to corresponding signal conductors of the primary leadframe. The secondary leadframe has mating contacts extending from corresponding mounting segments configured to be electrically connected to corresponding signal contacts of the mating connector. The secondary leadframe may be welded to the primary leadframe.