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components
December 31, 1969 |Estimated reading time: Less than a minute
Zierick Manufacturing Corp. - Capillary Action Enhanced Surface Mount Header
The Capillary Action Enhanced Surface Mount Header consists of square posts press-fit into round plated through-holes (PTH) on a header PCB. The assembly uses controlled capillary action to pull solder through the cavities between the pin and PTH. The resultant solder ring around the pin on the top side of the header indicates that the right amount of solder paste was used and the header is in the right position on the board. Placement tolerances are more forgiving because capillary action forces will pull the header into the correct position.