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Memory card connectors offer 1.8mm stand-offs

Posted: 28 Jul 2003 ?? ?Print Version ?Bookmark and Share

Keywords:67840 series? secure digital/secure digital io? sd/sdio? memory card connector?

The 67840 series of SMT Secure Digital/Secure Digital IO (SD/SDIO) memory card connectors from Molex Inc. feature 1.8mm stand-offs for good solderability, and allows a 1.5mm high ASIC chip to be mounted beneath the connector.

Offered in top-mount styles with a maximum terminal-and-nail co-planarity of 0.1mm, the memory card connector assemblies are available in two footprint versions to fit custom PCB requirements. One of the two versions features separate metal solder-tabs built under each arm extension of the connector housing. The single-piece metal shell of the connector has 4 metal tabs to provide robust connector securement to PCB as well as for I/O grounding. The other version features I/O grounding metal tabs located mid-way of connector edge. Both versions have locating pegs that are part of the housing design.

The 9-circuit connectors offer a profile height of 2.80mm, and accept industry standard SD memory cards. The connectors have metal grounding covers for high EMI/RFI protection and feature a "push-push" eject system for easy card insertion/extraction and secure card retention.

Rated at 0.5A per contact, the connectors feature beveled spring contacts for secure mating retention, an off-set terminal for first-make/last-break capabilities, and can withstand up to 10,000 cycles.

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