A Membrane Keypad Constructed A typical membrane keypad consists of approximately eight distinct layers, of which only the uppermost layer—known as the "front panel film" (or decorative film)—is visible d......

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

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.

How reliable is the IP67 waterproof rating for medical devices? Does liquid really not get inside?

Yes. JCF’s medical membrane switches are fully sealed with advanced perimeter gaskets and medical-grade adhesives, passing IP67 testing (immersion in water up to 1 meter for 30 minutes). They are highly resistant to common medical disinfectants and bodily fluids, making them ideal for hospital and clinical use.

How long does the metal dome tactile feedback last? Will the “click” feeling disappear over time?

Our premium metal dome tactile membrane switches are rated for over 1,000,000 actuation cycles. We select high-grade stainless steel domes and control the actuation force (typically 150-350gf) to maintain crisp, reliable tactile feedback throughout the product’s lifespan, even with frequent glove use.