1×4 Matrix Membrane Keypad This keypad features a 1×4 matrix crosspoint switch design and can be directly interfaced with a serial LCD controller, enabling a simple and integrated input/output interface. Its self-adhesive backing allows for easy mounting in a wide range of electronic applications where compact, lightweight input is required. Key Features 1×4 matrix crosspoint switch configuration Direct interface capability with serial LCD controllers Self-adhesive mounting for quick installation Lightweight and compact membrane design Specifications Parameter Details Name Matrix Membrane Cable Length 85 mm (including connector) Mount Style Self-Adherence Circuit Rating 35 VDC, 100 mA Insulation Specification 100 MΩ at 100 V Dielectric Withstand 250 VRms (60 Hz, 1 minute) Contact Bounce ≤ 5 ms Life Expectancy 1 million closures Operating Temperature -20 °C to +40 °C Net Weight 2.8 g Package Contents 1 × Matrix Membrane Keypad