Separable Interface Requirements September 8, 2022 Separability requires that a connector has the capacity to be mated and unmated multiple times without any unacceptable effect on... Read more
Contact Springs September 8, 2022 Recall the functional definition of a connector from Chapter I/1.1 Connector Function. A connector is an electromechanical system which provides... Read more
Noble Contact Finishes September 7, 2022 The classic noble metal contact finish system is gold over nickel as discussed in Chapter II/2.1.2 Contact Finish Degradation Mechanisms.... Read more
Non-noble Finishes September 7, 2022 Tin and silver are the two most common used non-noble finishes. Tin finishes are used in a wide range of... Read more
Contact Finish Selection September 7, 2022 Selection of an appropriate finish system for a given connector application requires consideration of a number of connector and application... Read more
Contact Finish Lubricants September 7, 2022 Connector contact lubricants are used to provide two different performance benefits; reduction in friction and corrosion protection. Reducing friction will... Read more
Silver Degradation Mechanisms September 7, 2022 Silver surfaces react with sulfur and chlorine. Silver sulfide films, tarnish, are readily displaced on connector mating, but have been... Read more
Nickel Degradation Mechanisms September 7, 2022 As noted previously, nickel surfaces always consist of a self limiting and very thin layer of nickel oxide, 0.01 µm... Read more
Fretting Degradation Mechanisms September 7, 2022 For completeness it should be noted that there are several fretting degradation mechanisms: Fretting WearAll fretting motions will cause some... Read more
Non-Noble Finish Degradation Mechanisms September 7, 2022 Because tin is the most commonly used non-noble contact finish, it will be the focus of this chapter. Silver and... Read more