028 36
Gold 0.061 16.069 14.1 Silver
The conductivity silver excellent, better than gold fact. The brass contacts are first
plated with 3-pm nickel layer (diffusion barrier) then with 2-pm gold
layer the contact area. brownish
sulphide layer easily develops its surface. This
surface protection sufficient for almost all industrial connectors
applications.5
Silver 0. The electrical
conductivity gold significantly less than that silver, but due its
constant contact resistance, used special applications.7.21:
176 ____________________________________________________________
Material Specific resistance Conductivity in
Ohm mm2 m
in Ohm mm2
Aluminium 0. The contacts are silver-plated,
with layer thickness pm.7.2 Gold
The finest surfaces are created with gold plating. Silver produces moderate diffusion
barrier.
This surface protection used for aggressive environments. The parts are immersed aqueous passivation emulsion.
4.5
Copper 0.
Due the thinness the layer, the poor electrical conductivity nickel is
insignificant.4.
4. This can be
very important, especially for small currents and low voltages.016 61
Zinc 0.3
.023 43.017 58
Brass (CuZn40) 0.3 Nickel
A 5-pm layer nickel applied protect large-surface parts, such earth
panels.12 8.7.4 The Specific Resistance and Conductivity Various
Materials
Table 4.
4.5
Tin 0.7.067 15
Nickel 0
