Typical Specifications - Mechanical characteristics
Electrical characteristics | Mechanical characteristics | Environmental characteristics
| Characteristic | Non-tactitle | Tactile Metal Dome | Tactile Polydome |
|---|---|---|---|
| Life cycle | > 2 million/key | > 1 million/key | > 1 million/key |
| Activation Force | 1-2.6N (3-10oz) | 2.6-4.3N (10-16oz) | 1.6-4.1N (6-15oz) |
| Travel | 1.27mm-5.08mm (0.005"-0.020") |
2.54mm-5.08mm (0.010"-0.020") |
3.81mm-7.62mm (0.015"-0.030") |
| Dimensional tolerance | ±0.25mm (±0.010") | ±0.25mm (±0.010") | ±0.25mm (±0.010") |
* Life cycles are estimated and will vary based on application.
| Mechanical Test Method | ||
|---|---|---|
| Characteristic | ASTM Standard | Description |
| Life Cycle | ASTM F1578-96 | Practice for contact closure cycling for membrane switches. |
| Activation Force | ASTM F1597-95 | Test method for determining the actuation force and contact force of a membrane switch. |
| Travel | ASTM F1682-96 | Test method for determining the travel of a membrane switch. |
| Capacitance | ASTM F1663-95 | Test method for determining the capacitance of a membrane switch. |
| Ink or Coating Adhesion | ASTM F1842-97 | Test method for determining ink or coating adhesion on plastic substrate for membrane switch applications. |
| Flexibility Test | ASTM F11683-96a | Practice for creasing or bending a membrane switch, membrane switch tail assembly or membrane switch component. |
| Adhesion Test | ASTM D3359-95a | Standard test methods for measuring adhesion by tape test. |