Nihon Superior Releases Video Results for Evaluation of Solder Alloys

Nihon Superior Co Ltd has released a video demonstrating the results of an evaluation comparing the wettability and spreadability of SN100C and SAC305 solder alloys on stranded wire.

According to the company, the video demonstrates that although SAC305 has a lower melting point, the superiority of SN100C’s wettability and spreadability after melting results in faster total wetting and spreading over SAC305.

In general, wettability is evaluated with zero-cross time using the wetting balance test (JIS Z 3198 or IPC J-STD-003). However, it is recommended to verify the performance of wetting and spreading of solder onto a base material after melting, such as in this evaluation. The total wetting time appears to be a more realistic indication of the true wetting and spreadability of a solder than just the zero-cross time as demonstrated in the video.

For more information or to view the demonstration, visit www.nihonsuperior.co.jp/english/sn100c/sn100c_nurehirogari.html.

www.nihonsuperior.co.jp