• noun an alloy with a low melting point, typically a mixture of tin and lead, used to join metallic parts
  • verb to join parts using solder
  • A metal or alloy that is utilized to join two metals, such as the leads of circuit components to conductive potions of printed circuits. The solder must have a lower melting point than that which is to be joined, as the former is melted, and the latter is not. Solders with comparatively low melting points, such as an eutectic alloy of tin and lead, are called soft solders, while those with comparatively high melting points, such as an alloy of silver, copper, and zinc, are called hard solders. A solder flux may be utilized to help prepare a surface for soldering.
  • To join surfaces with solder (1).

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