The assessment of connector reliability

The simple `U¿ curve concept used to express the mean time between failures (m.t.b.f.) of components as a means of estimating the m.t.b.f. of equipment is based upon a number of simplifying assumptions which are often forgotten when applying the simple rules which result. While the simple rules adopted are sufficiently accurate to give a good working value for many components, they are unrealistic when applied to connectors. Those features in which a connector fails to approximate to the simple model normally adopted are considered, and their effects on connector reliability noted. The operating conditions of connectors are grouped and analysed. From these considerations practical suggestions are made for obtaining an approximation to a value of connector reliability which would serve as a model for the forecasting of equipment reliability.