Key switches are electromechanical components that register keystrokes by completing an electrical circuit when pressed, commonly used in keypad matrices for input devices.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Lifecycle | 10-50 million cycles | |
| Current Rating | 10-50 mA | |
| Voltage Rating | 5-12 V DC | |
| Actuation Force | 45-65 gf | |
| Travel Distance | 3.5-4.0 mm | |
| Contact Resistance | <100 mΩ | |
| Operating Temperature | -20°C to 70°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A grid-based electrical circuit arrangement that enables efficient scanning and detection of multiple key presses using minimal wiring.
An input device designed with ergonomic principles to reduce strain and improve comfort during extended use.
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The main types include membrane switches (low-cost, sealed), mechanical switches (durable, tactile), and dome switches (tactile feedback, common in consumer electronics).
They enable a grid layout that reduces wiring and I/O requirements, allowing many keys to be monitored with fewer connections, improving cost-effectiveness and reliability.
Lifespan depends on material quality, actuation force, environmental conditions (e.g., dust, moisture), and usage frequency, with higher-quality switches offering millions of cycles.
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