Harting Sbírka katalogů říjen 2013

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Vydal: HARTING s.r.o. Autor: HARTING

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7.3 Nickel A 5-pm layer nickel applied protect large-surface parts, such earth panels.7.5 Copper 0. The brass contacts are first plated with 3-pm nickel layer (diffusion barrier) then with 2-pm gold layer the contact area. The electrical conductivity gold significantly less than that silver, but due its constant contact resistance, used special applications. The contacts are silver-plated, with layer thickness pm.067 15 Nickel 0.023 43.4. brownish sulphide layer easily develops its surface. This surface protection sufficient for almost all industrial connectors applications.4 The Specific Resistance and Conductivity Various Materials Table 4.5 Tin 0. 4.061 16. Silver produces moderate diffusion barrier.1 Silver The conductivity silver excellent, better than gold fact. 4. Due the thinness the layer, the poor electrical conductivity nickel is insignificant. This surface protection used for aggressive environments.12 8. 4.3 .016 61 Zinc 0.21: 176 ____________________________________________________________ Material Specific resistance Conductivity in Ohm mm2 m in Ohm mm2 Aluminium 0.2 Gold The finest surfaces are created with gold plating. This can be very important, especially for small currents and low voltages.7. The parts are immersed aqueous passivation emulsion.5 Silver 0.017 58 Brass (CuZn40) 0.028 36 Gold 0.7.069 14