loading

The perfect choice of one-stop service for diversification of architecture.

What Factors Will Affect the Reliability of Pin Contact Resistance of RJ45 Connector

We know that RJ45 is a kind of information socket connector in wiring system. The connector is composed of plug (connector, crystal head) and socket (module). The plug has 8 grooves and 8 contacts. The 8 contacts of RJ45 connector are composed of pin pins. What factors will affect the reliability of pin contact resistance of RJ45 connector? The following mainly explains the four main factors affecting the reliability of pin contact resistance of RJ45 connector: vertical pressure, contact material, service voltage and surface shape;

1、 Vertical pressure

Vertical pressure refers to the force generated by the surfaces in contact with each other and perpendicular to the surface of the contact. With the increase of vertical pressure, the number and area of contact micro points increase gradually, and the contact micro points transition from elastic deformation to plastic deformation. Because the concentrated resistance decreases gradually, and the contact resistance decreases, the vertical pressure of the contact mainly depends on the geometry and material properties of the contact.

2、 Contact material

Because the technical conditions of electrical connectors stipulate different contact resistance assessment indexes for contacts of the same specification made of different materials. General specification for quick release environment resistant electrical connector gjb101-86 stipulates that the contact resistance of plug-in contact with a diameter of 1mm is ferroalloy ≤ 15m Ω and copper alloy ≤ 5m Ω.

3、 Service voltage

Service voltage means that when a certain threshold is reached, the contact film will be broken down and the contact resistance will drop rapidly. However, the thermal effect accelerates the chemical reaction near the film and has a certain repair effect on the film. Therefore, the resistance value is nonlinear. Near the threshold voltage, the small fluctuation of voltage drop will cause the current to change in the range of 20 times or dozens of times.

4、 Surface morphology

Surface morphology mainly refers to the shape of the design and the environmental state.

Design shape: due to the pollution film formed by physical adsorption and chemical adsorption, it is mainly chemical adsorption on the metal surface, which is produced with electron migration after physical adsorption. Therefore, some products with high reliability requirements, such as aerospace electrical connectors, must have clean assembly and production environmental conditions, perfect cleaning process and necessary structural sealing measures, and the user must have good storage and operation environmental conditions.

Environmental state: some contact surfaces may have loose surface films formed by mechanical adhesion and deposition on the contact surface due to dust, rosin, oil stain, etc. this surface film is easy to be embedded in the micro pits of the contact surface due to particulate matter, which reduces the contact area, increases the contact resistance and is extremely unstable.

What Factors Will Affect the Reliability of Pin Contact Resistance of RJ45 Connector 1

GET IN TOUCH WITH Us
recommended articles
Related Blogs blog
Although GPR has been widely used in hydrology, engineering, environment and other fields, many basic theoretical and technical problems have not been fundamentally ...
So I am thinking of a possible answer to my own question:Build my own journal note entry app linked to a wiki.Zim Wiki uses a file based system for wiki. Maybe I cou...
About 8 I think1. where can i get ncaa football 10 rosters with names?For the last two years I got mine from "Pastapadre". From what i can tell they are really prett...
The Haunting I vaguely remember some kind of eye injury in the movie.• Other Related Knowledge ofa cocktail glass— â€&...
rsync can be somewhat painful if you have a very large number of files - especially if your rsync version is lower than 3. On the other hand: if you use tar, you wou...
Blockchain Technology Explained: Powering BitcoinMicrosoft recently became the latest big name to officially associate with Bitcoin, the decentralized virtual curren...
PLEASE HELP ME CHOOSE A VIDEO CAMERA!?the Flip ultra HD is a really good HD portable camcorder, and it's fairly cheap. A lot of famous youtubers use it, such as timo...
In order to implement the tasks proposed in the outline of the national medium and long term science and technology development plan (2006-2020), the national key R ...
Alibaba group and Royal Philips of the Netherlands announced that they have officially signed an IT infrastructure service framework agreement to jointly promote the...
but it seems the company has disappeared and you can only get it from other sites such as Canadian Content.It works on Windows 7 and due to the nature of the OSes, t...
no data
Guangzhou
House Empire Construction&Furnishing Co.,Ltd
no data
Sign Up For The Newsletterus
Copyright © 2018 Guangzhou House Empire Construction&Furnishing Co.,Ltd. | All Rights Reserved Design by www.digahousing.com |Sitemap
Customer service
detect