What are fuses made of?

A fuse is a special alloy material, typically composed of metallic elements such as copper, tin, and zinc. This material has a low melting point so that it melts quickly in the event of excessive current or circuit failure, thus protecting the circuit and equipment.

The choice of this material depends on factors such as its mechanical strength, conductivity, melting point, and cost. Copper and tin are common components because they have good conductivity and melting points, and are relatively easy to obtain. Zinc is used as an additive element to improve mechanical strength and corrosion resistance.