Brass End Cap

Tin plating is a common surface treatment method, the main purpose of which is to prevent corrosion and has good solderability. In the application of fuse caps, tin plating can provide good chemical stability, especially in dilute solutions of sulfuric acid, nitric acid, and hydrochloric acid. In addition, the tin plating layer helps to improve the corrosion resistance and aesthetics of the products while maintaining its solderability.

Silver plating is mainly used for decorative and anti-corrosion effects. It provides a very conductive surface while forming an effective corrosion barrier. The main advantages of silver are its high electrical and thermal conductivity, making it an ideal precious metal for applications where the design requires high power transmission. In the inner end caps, silver plating can enhance the conductivity while providing corrosion protection, but due to the high price of silver, its scope of use is relatively limited.

The nickel-plated product has good chemical stability in the atmosphere and alkaline solution, is not easy to change color, and will not be oxidized before 600℃. The nickel layer has high hardness and is easy to throw out the luster, but there is a problem of porosity. In the surface treatment of the inner end cap, nickel plating can enhance the wear and corrosion resistance of the product, while providing a structural basis to improve the adhesion and corrosion resistance of subsequent plating.

Gold plating is a high-value surface treatment method, mainly used to improve conductivity and prevent corrosion. 99.9% pure gold plating, or so-called soft gold, is usually used for pad connection or where wire bonding is required. In the application of the brass end cap, gold plating can provide the highest electrical and thermal conductivity while forming a very effective corrosion barrier. Gold plating is suitable for applications with high contact pressure or applications with sliding wear, such as female/male contact pins.