Molex unveils unshielded SMT SDIO memory card connectors

Our Convergence Bureau
16 October 2003

Mumbai: Enjoy the benefits of industry-standard features in the compact, economical design of Molex''s (www.molex.com) series 67781 of unshielded SMT secure digital input output (SDIO) memory card connectors.

With a choice of ''no stand-off'' or 1.80mm (0.071") stand-off versions, these inexpensive, lightweight connectors feature good solderability while offering rugged performance and ease-of-use. The 1.80mm stand-off version even allows a 1.5mm (0.059") high application-specific integrated circuit (ASIC) chip to be mounted beneath the connector.

Both versions of SDIO card connectors accept industry standard SD memory cards in applications such as PDAs, digital video cameras, digital still cameras, notebook computers, electronic dictionaries, home video game machines, cellular phones, and other small form factor electronic devices.

The connectors are designed to withstand high durability card insertion and extractions of up to 10,000 times; and provide good resistance to shock and vibration while ensuring high electrical contact integrity when used. The plastic cover of the connector is made of heat-resistance polymer and provides good protection of electrical contacts as well as added card stability.

Distinct features of the 67781 series include the connector''s unique stainless steel card lock pin which gives good mechanical support during card insertion, while offering high chemical and moisture corrosion resistance. The connectors provide card insertion detection and read-write switch functions by the ''protect'' pin extension which makes contact with the ''protect-and-detect'' pin. The ''protect-and-detect'' terminals of the connector provide card security and read-write capabilities. Beveled spring contacts within the connector housing secure connector to card mating.

These nine-circuit connectors are rated at 0.5Amp and 250 Volts DC per contact and feature good terminals-and-pins co-planarity of up to 0.1mm (0.003") maximum. They can be ordered in embossed tape packaging for automatic board mounting.