The optimization of electrical properties can be considered from the control of the existing, about-to-be-formed film in contact with the plated surface. In these coatings, the companion to the contact surface only needs to move during mating, so it is relatively simple to create interfacial metal contact. To achieve this, in order to provide this inherent stability, a metal contact interface is required.
In order to establish such a contact interface, the surface film needs to be avoided or split during contact cooperation. One of the main requirements for Pin Header electrical performance is to establish and maintain a stable pin header impedance.
These two different options reveal the difference between precious or rare metals and ordinary metals. In order to maintain the stability of the contact interface resistance, it is necessary to pay attention to maintaining the noble metal property of the contact surface in the design of pin header and Female Header to prevent the influence of external factors such as contamination, diffusion of base metal, and contact wear. Depending on the degree, the nature of the precious metal coating is free relative to the thin film on the surface.
The role of tin contact plating is that the oxide is easily destroyed when mixed, and it is easy to establish metal contact. This is usually easy to achieve. The requirement of the pin header and female header design is to ensure that the oxide film is ruptured when the pin header header and female header are proportioned, and that the contact interface is not oxidized during the validity period of the electrical connection retainer.
Ordinary metal coatings, especially tin or tin alloys, are naturally covered by an oxide film. Nickel plating is also generally considered a common metal due to the formation of valve economy. Reoxidation corrosion is the main performance degradation mechanism of tin contact coating in wear corrosion. The pin header mother silver contact plating is easily corroded by sulfides and chlorides, so it is preferably considered as a normal metal plating.
Correct use of round hole pin header and female connector
When installing a round-hole pin header and female connector, if you notice that the pin header is insufficient, please choose to replace it immediately. Otherwise, the application of pin header female connectors is prone to problems such as common failures.
During the whole process of using the round hole pin header and female connector, please be careful not to insert it backwards or dislocate it. In addition, when it cannot be inserted smoothly, do not forcefully pull it out, so as not to damage the pin header.
Assuming that the number of columns using the round hole pin header connector is large, in the connection between the pin header and the female header, it is necessary to pay attention to whether each pin header is located at the pinhole where the two ends are aligned with the female header, otherwise, in the case of no alignment at both ends down, the pin header sheet metal is easily broken.
When expanding the actual operation of the round hole pin header and female header application, slowly insert the round hole pin header and female header, especially when pulling out the pin header, do not focus on the actual operation, so as to avoid the two sides of the pin header coming out together . When the round hole pin header is used for a long time, please carefully remove the dust in the pin hole of the header. If the dust accumulates too much, the connection between the pin header and the female header will be poor, and the current flow and data signal transmission will be unstable in the application of the pin header and female header.
