High-speed board to backplane electrical connector
9 May 2001
Interconnection
Tyco Electronics has released a new high-speed, differential, board to backplane electrical connector for the telecommunications and computer industries. The Z-Pack HM-Zd product is an extension of the already established IEC 61076-4-101 hard metric (HM) connector family, providing a differential solution for applications in the range of 3-5 Gbps.
This connector system is specifically designed to meet the challenging electrical performance requirements required by next generation designs utilising low voltage differential signalling. The manufacturer says this connector provides low cross-talk, low skew, improved trace routing, reliable dual beam contacts, 1,5 mm mating intervals and a rugged housing - all in a 100 W differential signalling environment.
The Z-Pack HM-Zd connector easily integrates into existing backplane and subrack designs utilising the HardMetric, CompactPCI or Eurocard design standards. It shares with the hard metric connector such mechanical design features as: key layout dimensions, pin heights, sequential mating dimensions, plastic coding keys, and press-fit hole requirements.
Initially, Tyco is offering the HM-Zd connectors in a 25 mm module with 40 differential pairs in a four pair-eight row design (80 signals with 40 grounds), and 20 differential pairs in a two pair-four row design (40 signals with 20 grounds). Each 100 W differential is a transmission line with its own tightly coupled reference ground to control impedance and minimise connector noise. Additionally, the L-shaped shield blades provide for rugged mating and greatly reduces the possibility of contact stubbing. These shields also stand more than a millimeter higher than the signal pin pairs. This mechanical arrangement will help protect the signal pins from damage during the handling of backplanes equipped with these connectors. The plastic housing has additional pre-alignment pins that help align the connectors prior to contact engagement.
Electrical evaluation boards, mechanical CAD models, SPICE electrical models, insertion tooling and test reports are available under the new products navigation section at www.amp.com/communications
For further information contact Avnet Kopp, (011) 444 2333, sales@avnet.co.za or www.avnet.co.za
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