Low profile connector system
A connector system is disclosed that can support high data rates over a connector with terminals on a 0.5 mm pitch. A plug connector can include a termination module that has a paddle card and a plug module that includes rows of terminals. The termination module and the plug module can be aligned via the row of terminals and pads on the paddle card. A receptacle connector includes two rows of terminals that are provided on opposite sides of a tongue. The tongue includes impedance notches aligned with terminals arranged as differential pairs. Ground terminals extend past the differential pairs and along the impedance notch.
1. A receptacle connector, comprising:
a shell configured to be secured to a circuit board;
a housing assembly at least partially positioned in the shell, the housing assembly including a first terminal frame and a second terminal frame, the first terminal frame supporting a first row terminals and the second terminal frame supporting a second row terminals, the rows of terminals provided on a 0.5 mm pitch, the housing assembly and the shell defining a port; and
a first tongue provided by the first terminal frame, the first tongue supporting pairs of differential-coupled terminals separated by a ground terminal, the ground terminals configured to extend beyond the signal terminals toward an end of the first tongue, the first tongue including impedance notches position adjacent an end of the signal terminals, the impedance notches having ground terminals extend along two sides, wherein the terminals are less than 0.13 mm thick and wherein the receptacle connector is configured to support a data rate of 16 Gbps using NRZ encoding in a passive manner.
2. The receptacle connector of claim 1 , wherein the first terminal frame supports a terminal comb, the terminal comb configured to help align tails supported by the first terminal frame.
3. The receptacle connector of claim 1 , further comprising a second tongue provided by the second terminal frame, the second tongue supporting pairs of differential-coupled terminals separated by ground terminals, the ground terminals configured to extend beyond the signal terminals, the second tongue including impedance notches position adjacent an end of the signal terminals, the impedance notches having ground terminals extend along two sides.
4. The receptacle connector of claim 3 , wherein the first and second terminal frame are configured to be married together prior to insertion into the shell.
5. The receptacle connector of claim 3 , wherein at least one of the first and second tongues includes cutouts aligned with the terminals.
6. A receptacle connector, comprising:
a shell configured to be secured to a circuit board;
a housing assembly at least partially positioned in the shell, the housing assembly including a first terminal frame and a second terminal frame, the first terminal frame supporting a first row terminals, each of the terminals in the first row including contacts, tails and a body that extends therebetween, and the second terminal frame supporting a second row terminals, each of the terminals in the second row including contacts, tails and a body that extends therebetween, the rows of terminals provided on a 0.5 mm pitch, the housing assembly and the shell defining a port, wherein the first row of terminals includes pairs of signal terminals surrounded by ground terminals, the ground terminals being longer than the signal terminals, and the housing includes ribs along the body that vary the impedance of ground terminals versus signal terminals so as to cause the signal terminals to be preferentially coupled; and
a first tongue provided by the first terminal frame, the first tongue supporting pairs of differential-coupled terminals separated by a ground terminal, the ground terminals configured to extend beyond the signal terminals, the first tongue including impedance notches position adjacent an end of the signal terminals, the impedance notches having ground terminals extend along two sides.
7. The receptacle connector of claim 6 , wherein the first terminal frame supports a terminal comb, the terminal comb configured to help align tails supported by the first terminal frame.
8. The receptacle connector of claim 7 , further comprising a second tongue provided by the second terminal frame, the second tongue supporting pairs of differential-coupled terminals separated by ground terminals, the ground terminals configured to extend beyond the signal terminals, the second tongue including impedance notches position adjacent an end of the signal terminals, the impedance notches having ground terminals extend along two sides.
9. The receptacle connector of claim 8 , wherein the first tongue includes cutouts aligned with the terminals.
10. The receptacle connector of claim 9 , wherein the second tongue includes cutouts aligned with the terminals.