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2020/08/07

Do you really need silver in your lead-free solder ?

Silver price soaring !

Since a low of USD13/ounce in March 2020 the silver price has risen more than 125% to around USD27/ounce with all signs indicating that rise will continue.

Look what SAC305 materials cost!

The silver price has a major effect on the price of lead-free solder alloys that rely on silver as the major addition.

The effect of the silver price on the widely used Sn-3.0Ag-0.5Cu solder alloy (‘SAC305″) is apparent in the table below. Although making up only 3% of the weight of the solder, at current prices it accounts for 60% of the material cost.

Time to think about switching to a lead-free solder that does not contain silver

The rising cost of silver is prompting solder users to recognize the advantages of solders that can deliver reliable performance without silver being included in the formulation.

For 20 years, Nihon Superior has been supplying their general purpose silver-free lead-free solder, SN100C® to electronics manufacturers around the world and that solder has establised an enviable reputation for rugged reliability in a wide range of application. Since SN100C contains no silver its price has remained relatively stable through the wild swings in the market price of silver.

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