Why do some keys on my membrane keypad become unresponsive or require hard pressing?

2026-05-25

　Unresponsive keys are often caused by dust, moisture ingress, metal dome fatigue, or poor contact. At JCF, we use high-quality nickel-plated metal domes and precision printing processes to ensure consistent contact resistance (<100Ω). Our IP67 sealed design effectively prevents contamination, significantly reducing this issue in medical environments.