PRODUCT SERVICE
Silicone Rubber Keypads
Haptics
- Features
- Long-stroke solution
- Short-stroke solution
- Touch Panel solution
Description
The Force-Stroke curve of the silicone rubber keypads can be a crucial parameter for keypads design. The travel (distance) of the keypads will essentially affect the tactile feeling of the operation.
Silicon rubber keypads are currently used to make a direct or indirect connection to a circuit board or another switching mechanism fastened below. Elastomeric keypads can provide a maximum tactile response due to their full travel flow when it comes to data entry interfaces. They offer a lower unit cost than conventional switching products, and are resistant to temperature, moisture, chemicals, and abrasion, providing them with a long operating life.
Silicon rubber keypads are currently used to make a direct or indirect connection to a circuit board or another switching mechanism fastened below. Elastomeric keypads can provide a maximum tactile response due to their full travel flow when it comes to data entry interfaces. They offer a lower unit cost than conventional switching products, and are resistant to temperature, moisture, chemicals, and abrasion, providing them with a long operating life.
Application
Telephone, Remote Control, Toys, Measuring Instruments, Electronic device, Dashboard touch panelElastomeric Keypad Construction:
Elastomeric keypads are manufactured from rubber and are formed using molds. Most elastomeric keypads utilize the rubber as the top circuit or actuator when pressed, making contact with a lower switch circuit or PCB. Differing forces can be accomplished by using various key constructions as shown below:Type Curve | Force Range | Stroke Range | Life Cycle(x103) | Typical Uses |
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0-350g | 0.5-3.0mm | 500-2,000 |
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30-250g | 0.7-1.5mm | 500-2,000 |
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30-150g | 0.5-3.0mm | 1,000-3,000 |
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30-80g | 2.0-4.0mm | 5,000-20,000 |
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30-200g | 1.5-2.5mm | 500-3,000 |
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20-80g | 0.2-1.0mm | 500-10,000 |
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Force-stroke curve of rubber keypad:
ACTUATION FORCE DIAGRAM | ||||
---|---|---|---|---|
POINT | STROKE(mm) | FORCE(gf) | ||
F1 | Peak Force | |||
F2 | Contact Force | |||
F3 | Return Force | |||
F4 | Return Peak Force | |||
F1-F2(gf) | Snap Value | |||
Click Ratio(%) | (F1-F2)/F1x100% | |||
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