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Modular connectors allow flexible PCB stacking

Posted: 10 May 2007 ?? ?Print Version ?Bookmark and Share

Keywords:modular SMT connectors? flexible PCB stacking? MicroSpeed connectors?

ERNI Electronics' MicroSpeed connectors

ERNI Electronics has released a portfolio of new MicroSpeed connectors that offer different height options. Suited for high-speed data transfer in telecom and datacom applications, the 1mm modular shielded SMT connector system consists of two contact rows and two outwardly arranged shield plates. The MicroSpeed connectors are designed for space-saving board-to-board connections and are equally suitable for differential and single-ended signals.

With the availability of different height versions of the male (1-, 2-, 9- and 10mm) and female (4-, 6-, 8- and 10mm) connectors, it is possible to create 16 different stacking heights from 5mm to 20mm. The company added that the device also enables multiple-connector mating capabilitybased on high mating tolerancethat allows the mating of more than one connector pair at the same time. The part also offers high scalability of the contact number. Applications include modern telecommunication and data transmission systems with speeds up to 10Gbps, as well as technologies used in the fields of measurement, medicine and government. The SMT version also provides a fully automatic SMT assembly and reflow soldering process.

For impedance purposes, the longitudinal pitch of MicroSpeed connectors is 1mm and the transverse pitch is 1.5mm. The differential signal pairs of the device can also be arranged horizontally or vertically. Optimized crosstalk behavior is achieved with a vertical (transverse to longitudinal direction) configuration of the signal pairs, and the pairing arrangement of signal and shield contact pairs.

While the signal contacts are made in SMT, the user can select between two terminal options for the shielding, depending on the application: SMT or THR connection. The shielding pins also assure robust strain relief of the connector. The length of the connector modules is 27mm with 50 signal contacts and two shield plates, and they can be easily lined up with virtually no loss of board space.

The MicroSpeed male and female connectors are supplied in tape-on-reel packaging, and additional design features of the fully automatic placement include black insulating bodies made of LCP for fast and dependable visual recognition, and a pre-mounted placement aid for easy gripping. ERNI provides Spice models and evaluation boards as design support for this family of high-speed connectors.

Large volume price starts at $9.50 for a mated connector pair.

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