Product Overview
ALPHA SAC305, SAC387 and SAC405 and their replenishment alloys ALPHA SAC300, SAC350, SAC380 and SAC400 are lead-free alloys suitable for use as a replacement for Sn63Pb37 alloy.
The replenishment alloys are sometimes used to stabilize and reduce the copper content in the wave solder bath, although, this requirement will depend on process conditions.
As with all Alpha’s bar solder, the proprietary Vaculoy alloying process is used to remove certain impurities, particularly oxides.
Features and Benefits
View Detailed Product Parameters
Management of Copper Levels in the Solder Bath
Management of the copper level in the wave solder bath is critical to ensure low defects in the soldering process. There is a tendency for the copper levels of the ALPHA SAC305/387/405 materials to increase due to the leaching effect of the solder wave on the board and components. This effect is at its most severe when using an OSP Copper finish on the PCB. A typical copper level increase is shown on the chart below:
