Jul 26 2006
Printed circuit board designers looking to conserve board space will be interested in the new, low-profile vertical surface mount version of the 3M four-wall header 2500 series from the 3M Electronic Solutions Division. The .100" x .100" connector allows surface mount components to be placed on the opposite side of the board. The surface mount tails on the RoHS-compliant 3M design are visible, allowing for post-processing cleaning and joint inspection, which results in higher-quality assurance.
Available in 10-64 positions, these products are Restriction of Hazardous Substances (RoHS) compliant and meet JEDEC J-STD-020C requirements for lead free processing. The connectors can withstand reflow temperatures, including lead-free processing up to 260 degrees Celsius. The surface mount version ships in tape and reel packaging with high-temperature molded pickup caps, enabling automated pick and place for lower applied cost. It has a factory lead time of seven days. The addition of a surface mount termination style enhances the current 3M offering of plated through-hole versions used for wave solder and pin-in-paste processing applications.
While the surface mount version of the product is being launched as a RoHS compliant(1) offering, 3M continues to offer the 3M low-profile header solder tail 2500 series products with tin lead plating for its customers with legislative exemptions.
(1)"RoHS compliant" means that the product or part does not contain any of the following substances in excess of the following maximum concentration values in any homogeneous material, unless the substance is in an application that is exempt under RoHS: (a) 0.1 percent (by weight) for lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers; or (b) 0.01 percent (by weight) for cadmium. Unless otherwise stated by 3M in writing, this information represents 3M's knowledge and belief based on information provided by third party suppliers to 3M.