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Board-to-board connectors fit high-density mezzanine cards

Posted: 29 Jan 2008 ?? ?Print Version ?Bookmark and Share

Keywords:board-to-board connectors? mezzanine cards?

Molex Inc. has announced the availability of its HD Mezz and SEARAY board-to-board connectors for applications with high-pin-count devices on mezzanine cards or module PCBs. These connectors are aimed at expansion cards for use in networking and telecommunication equipment, mid- and high-range computers, medical equipment, military products and industrial controllers.

HD Mezz and SEARAY connectors are said to simplify PCB routing without sacrificing performance, as well as provide advanced electrical and mechanical features at cost-competitive pricing. By employing Molex-patented solder-charge technology for standard SMT attach, both connectors provide better process yields and a lower applied cost versus equivalent BGA connector products, said Molex. As a result, customers will no longer need to incorporate large, complex, multi-layer boards into their systems, saving card-slot space and reducing costs.

HD Mezz connectors provide a flexible tooling approach that allows for multiple stack heights, ranging from 16mm to 38mm, and circuit sizes of 91-403 circuits. These high-speed connectors support data rates up to 12.5Gbit/s and are said to offer the highest contact density available in the market with 14 differential pairs/cm?. They feature a reliable mating interface with 2mm wipe, and two points of contact for clean signal transmission and enhanced durability.

The SEARAY connectors accommodate low-profile applications with stack heights of 7mm to 15mm, covering the range just below HD Mezz products. It also offers solutions using high-speed copper flex assemblies. Option cards may be added or upgraded to increase flexibility in system performance. These connectors deliver speeds up to 10Gbit/s and offer a durable contact design that prevents stubbing and damage in the mating interface. It comes in an industry-standard footprint of 1.27mm x 1.27mm (0.050 x 0.050 inches). Delivery is six weeks.

- Gina Roos

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