Nickel: Hard Gold

▪　Usual thickness: 0.7 µm (0.00003”) to 1.3 µm (0.00005”) gold (99.7%) over 5.0

▪　µm (0.0002”) nickel or 0.2 µm (0.000008”) to 0.3 µm (0.00001”) gold (99.7%) over

▪　5.0 µm (0.0002”) nickel for a solderable surface

▪　Very good for corrosion resistance

▪　Rated at 130-220 Knoop hardness

▪　Very good wear resistance

▪　Excellent for surface rotary switches, on-off contacts, and edge connectors

▪　Very good shelf life

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