OSAKA, JAPAN — A new guide from Nihon Superior on “Reliability of Lead-Free Solder in Thermal Cycling” is the first in a series on lead-free solder selection.

The new series is intended to address the challenges in choosing a reliable lead-free solder, the company said in a press release.

Nihon notes eco-friendly hybrid and electric vehicles expose solders to extreme temperatures during service. Therefore, resistance of a solder joint to thermal fatigue is an important characteristic. The new guide provides sample cross-sections that show differences in thermal cycling between various lead-free solders, including Nihon's patented SN100C alloy.

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