Solder materials

SN100C

A silver-free lead-free solder alloy developed by Nihon Superior. Its Sn-Cu-Ni composition is registered in ISO 9453:2014 (Alloy No.403).

Maker: Nihon Superior · Official product page

Specifications


CompositionSn-0.7Cu-0.05Ni + Ge (silver-free)
StandardISO 9453:2014 Alloy No.403
Main applicationsSoldering of electronic components and board assembly

Specifications as published by the maker. See the sources below.

Overview


SN100C is a silver-free lead-free solder alloy developed by Nihon Superior. Copper (Cu) and nickel (Ni) are added to tin (Sn), with a trace of germanium (Ge).

The Sn-Cu-Ni composition is registered in ISO 9453:2014 as Alloy No.403. It has been used in more than 2.4 billion devices.

Key features


Applications


Other solder materials


Sources


  1. Nihon Superior: SN100C

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Last updated: October 23, 2026