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The words eutectic solder describe a solder alloy that melts and freezes at one single temperature. A good example of this is Tin 63% / Lead 37% solder which melts and freezes at 183 °C. This melting point is much lower than the melting points of either pure metal which are 232 °C (tin) and 327 °C (lead). If the concentration of tin and lead is shifted away from Sn63/Pb37 then the melting point becomes a melting range.
For example, Sn 60% / Pb 40% melts in the range of 90 to 120 °C. As this alloy is heated it starts to melt at 90 °C, is slushy between 90 °C and 120 °C, and becomes fully liquid at 120 °C. Eutectic solders tend to have a bright, shiny appearance while non-eutectic solders tend to have a dull, grainy appearance.
Eutectic tin-lead solder was the most popular type of solder used in electronic devices for many years. It melts at a temperature lower than the components being joined together. Tin/lead solder is corrosion resistant and has good electrical properties. It also creates solder joints with mechanical strength suitable for electronic devices.
Lead-free solders used to replace tin-lead solder ideally have the same properties as tin-lead solder. Most lead-free solders are tin based and contain silver, copper, and other additives. The elements alloyed into lead-free solders help to modify the properties of pure tin to become more favorable for electronic applications.
There are a variety of common solder alloys used for electronics assembly, but only a few are eutectic solders
Eutectic solders tend to have a bright and shiny appearance as compared to non-eutectic solders. The physical and mechanical properties are also different for each solder alloy.
Key Features
rosin core solder 0.8mm wire diameter.
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Great solderability, insulation resistance
No spattering and Non-corrosive.
40/60 rosin core solder 0.8mm wire diameter.
60w soldering iron
Great solderability, insulation resistance
No spattering and Non-corrosive.
Widely used in electronics field and solder parts like circuit board, electronics devices and others.
Widely used in electronics field and solder parts like circuit board, electronics devices and others.
What's In the Box
Solder leadSoldering iron
