Features:
①Membrane Keypad has good waterproof, dustproof, oil-proof and anti-corrosion ability.
②Every key has its own wire line, no matrix code is required - just treat these like every day switches.
③Matrix crosspoint switch and can be directly interfaced to Serial LCD controller making a complete input output interface.
④With removable paper backing to expose a strong adhesive so you can stick this on an enclosure and feed the cable through a slot.

Mechanical parameter:
Button: 16-Key (4x4)
Wire type: 8 Pins
Pin pitch: 2.54mm
Cable Length: 72mm/2.8''
Pad Size: 76x69x0.8mm/3''x2.7''x0.03''(L*W*T)
Circuit material: Silver Paste Printed Circuit
Silver paste line width: ≥0.3mm, Interval: min 0.3mm
Closing displacement: 0.1~0.4mm (non-tactile type)/ 0.4~1.0mm

Electronic parameter:
Button rebound time: ≤6ms
Working voltage: Working current: Contact resistance: 0.5~10Ω (varies according to lead length)
Insulation resistance: ≥100MΩ 100V
Substrate withstand voltage: 2kDVC
Insulating ink withstand voltage: 100V DC

Environmental parameters:
Working temperature: -20℃~70℃
Storage temperature: -40℃~85℃
Storage humidity: 95(±5)%
Atmospheric pressure: 86~106KPa