4x4 Matrix Membrane Keypad

Keys / Layout: 16 buttons arranged in a 4x4 matrix grid (Digits ⁠0–9⁠, Letters ⁠A–D⁠, ⁠*⁠, ⁠#⁠)

Interface / Connector: 8-pin Dupont connector (2.54mm pitch: 4 Row pins + 4 Column pins)

Max Operating Voltage/Current: 24 V DC, 30 mA

Insulation Resistance: 100 MΩ @ 100 V DC

Contact Bounce: ≤ 5 ms