4x4 Keypad:

SPECIFICATIONS
LIFE EXPECTANCY: 500,000 Cycles Typical
CONTACT RATINGS: 300mA 12VDC
CONTACT RESISTANCE: 50mΩ Max. Typical at 2-4VDC, 100mA
INSULATION RESISTANCE: 50MΩ Min.
DIELECTRIC STRENGTH: >1,000V RMS at Sea Level
OPERATING FORCE: 255gf Max.

MATERIALS:

HOUSING: 6/6 Nylon
CAP: ABS
CONTACTS: Gold Over Nickel Over Copper Alloy
TERMINALS: Gold Over Nickel Over Copper Alloy