5 pins 2.54mm pitch connector, 4x 4type 16 keys.

Max Voltage: DC 35V

4×4 Matrix Keypad Module (Membrane) allows a microcontroller to scan the 8 output pins to see which of the 16 buttons is being pressed.

Current: 100mA

Contact Resistance: 500 Ω

Insulation Resistance: 100 MΩ

100 million life-stroke lifespans and good resistance to environmental conditions