What are the differences between nickel plating and gold plating of connector pins?

1、 What are the advantages and disadvantages of nickel plating and gold plating in connectors?

In terms of price, gold is much more expensive than nickel. Gold plating in connectors is more frequent than nickel plating in use. Gold has better electroplating conductivity and weldability than nickel, but its cost is high. The cost of nickel is low. It can be used as a filling and leveling function on the basic layer, and then the plating layer can undertake stronger characteristics. Generally, nickel plating is followed by gold plating

Gold has the best solderability, conductivity and stability among metals. It is widely used in connectors. Nickel has good stability, but poor solderability, but good temperature resistance

The physical properties of the electroplated coating are relatively stable, and the conductivity is also relatively good, but the material is expensive. Generally, it is plated on the contact layer of the terminal.

The electroplating property of nickel alone is not good. Generally, nickel will not be directly plated for welding. The so-called weldable nickel is now available, but it is actually a layer of flux added after nickel plating.

2、 How is the connector gold plating thickness defined?

1. Generally, it refers to terminal gold plating, and there are usually four specifications. Goldflash is usually used for electroplating the external iron shell of the connector to make it look beautiful.

2. Connector. It is also called connector, plug and socket in China. It generally refers to electrical connector. It refers to the device connecting two active devices to transmit current or signal.

3、 What is the proper gold plating thickness of connector?

Connector. It is also called connector, plug and socket in China. It generally refers to electrical connector. It refers to the device connecting two active devices to transmit current or signal.

General connector coating thickness: 15~50u gold, 50~100u nickel.

General connector coating thickness: 15~50u gold, 50~100u nickel. The most commonly used precious metal electroplating includes gold, palladium and their alloys.

Gold is the most ideal electroplating material with excellent electrical and thermal conductivity. In fact, it is corrosion resistant in any environment. Because of these advantages, gold is the main plating in connectors for applications requiring high reliability, but the cost of gold is very high.

Palladium is also a precious metal, but compared with gold, it has high resistance, low heat transfer and poor corrosion resistance, but it has advantages in friction resistance. Palladium nickel alloy (80~20) is generally used in the terminal of connector (POST).

Generally, it refers to terminal gold plating. There are four specifications: 5u ", 15u", 30u ", goldflash (0.8u");

Goldflash is usually used for electroplating the external iron shell of the connector to make it look beautiful;