cadwire

Cadwire refers to a type of wire specifically designed for use in electrical wiring applications within the automotive industry and other specialized fields. Its construction often involves a core of one metal, such as copper for conductivity, surrounded by a coating or plating of another metal, like tin or a tin-lead alloy. This plating serves a crucial purpose: it protects the underlying copper from corrosion and oxidation, which can degrade electrical connections over time, especially in harsh environments.

The use of cadmium in the name "cadwire" is a historical reference to the potential use of cadmium plating in some earlier formulations or similar products. However, modern "cadwire" typically does not contain cadmium due to environmental and health concerns associated with the element. The term has become somewhat generalized to describe tinned copper wire used in demanding electrical systems.

Cadwire is valued for its reliability and durability. The tin coating facilitates easier soldering, creating strong and consistent electrical connections. This makes it a preferred choice for applications where vibration, moisture, and temperature fluctuations are common, such as in automotive harnesses, marine electronics, and industrial control systems. The consistent electrical performance and resistance to environmental degradation contribute to the longevity and safety of the systems in which it is employed.