1-8. Lead-free Solder
Boards requiring use of unleaded solder are printed with a lead free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
Notes
• Be sure to use the unleaded solder for the printed circuit board printed with the lead free mark.
• The unleaded solder melts at a temperature about 40 °C higher than the ordinary solder. Therefore, it is
recommended to use a soldering iron having a temperature regulator.
• The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly longer
time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful.
MCS-8M
1-39
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