5
Silver 0.5
Copper 0.069 14.
Due the thinness the layer, the poor electrical conductivity nickel is
insignificant.028 36
Gold 0. brownish
sulphide layer easily develops its surface.7. The electrical
conductivity gold significantly less than that silver, but due its
constant contact resistance, used special applications.21:
176 ____________________________________________________________
Material Specific resistance Conductivity in
Ohm mm2 m
in Ohm mm2
Aluminium 0.
This surface protection used for aggressive environments.12 8.4 The Specific Resistance and Conductivity Various
Materials
Table 4.023 43.017 58
Brass (CuZn40) 0.2 Gold
The finest surfaces are created with gold plating.
4. The parts are immersed aqueous passivation emulsion.067 15
Nickel 0. The contacts are silver-plated,
with layer thickness pm.
4.7. Silver produces moderate diffusion
barrier. This
surface protection sufficient for almost all industrial connectors
applications. This can be
very important, especially for small currents and low voltages.7.3 Nickel
A 5-pm layer nickel applied protect large-surface parts, such earth
panels.016 61
Zinc 0.7.
4.061 16. The brass contacts are first
plated with 3-pm nickel layer (diffusion barrier) then with 2-pm gold
layer the contact area.4.3
.1 Silver
The conductivity silver excellent, better than gold fact.5
Tin 0
