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1.27mm pin header factory small class explanation: What are the factors that affect the contact performance of the pin header?

  • Categories:Industry News
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  • Time of issue:2021-06-28 10:26
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(Summary description)To a certain extent, noble metal coatings (such as gold, palladium and their alloys) basically contain no surface film. For these coatings, metal contact at the interface is relatively simple, because it only requires the movement of the contact surface during the mating process. Usually this is easy to achieve.

1.27mm pin header factory small class explanation: What are the factors that affect the contact performance of the pin header?

(Summary description)To a certain extent, noble metal coatings (such as gold, palladium and their alloys) basically contain no surface film. For these coatings, metal contact at the interface is relatively simple, because it only requires the movement of the contact surface during the mating process. Usually this is easy to achieve.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-06-28 10:26
  • Views:
Information

Do you know what is the key factor that affects the contact performance of the pin header? Let's follow the editor of 1.27mm pin header factory to have a simple understanding!
The optimization of electrical properties can be considered in terms of controlling the existing and upcoming films on the contact plating surface. One of the main requirements for the electrical performance of the needle and the bus bar is to establish and maintain a stable impedance of the needle and the bus bar. To achieve this goal, a metal contact interface is required to provide this inherent stability. Establishing this contact interface allows the surface film to be avoided or cracked during contact and mating. The difference between precious metals or rare metals and ordinary metals determines the difference in pin header applications.
To a certain extent, noble metal coatings (such as gold, palladium and their alloys) basically contain no surface film. For these coatings, metal contact at the interface is relatively simple, because it only requires the movement of the contact surface during the mating process. Usually this is easy to achieve. In order to maintain the stability of the impedance of the contact interface, the design of pins and bus bars requires that the noble metal on the contact surface be maintained to prevent the influence of external factors such as pollutants and contact wear.
Ordinary metal plating, nickel plating is usually regarded as ordinary metal due to the formation of valve channels. It will naturally be covered with an oxide film. The function of the tin contact coating is because this oxide layer is easily destroyed during the matching process, which makes it easy to establish metal contact. The requirement of pin header design is to ensure that the oxide film does not break when the pin seat is matched, and to ensure that the contact interface is no longer oxidized during the validity period of the electrical connector. In wear corrosion, reoxidation corrosion is the main performance degradation mechanism of tin contact coatings. The mother silver contact coating of the header pins is recommended to be regarded as an ordinary metal coating, because the coating is easily corroded by sulfides and chlorides.
In summary, the editor of 1.27mm pin header factory tells: You can learn more about the factors that affect the contact performance of pin headers.

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