
| Electrical properties | |
|---|---|
| Tension | 25 VDC max * |
| Electricity | 50 mA max * |
| Performance | 0,6 W max * |
| Contact resistance | < 100 Ohms ** |
| Insulation resistance | 5 x 106 Ohms |
| Response time | < 20 mS max |
| Mechanical properties | |
| Dimensional tolerances | +/- 0,2 mm |
| Switching force | 2 – 4 N |
| Key way | 0,15 – 0,2 mm |
| Keyboard thickness | 1,5 mm max |
| Radium of rolling the connection cable | > 3 mm |
| Service life | |
| Without dome | > 4,000,000 operations |
| Metal dome | > 1,000,000 operations |
| Poliesterdom | > 2,000,000 operations |
| Temperature conditions | |
| Averting temperature range | - 20 to + 70 oC |
| Storage temperature range | - 40 to + 80 oC |
| * electrical conditions for optimum service life: 20 VDC, 10 mA, 0.25 W |
| ** dependent on the length of the lines, resistance of the line: < 8 Ohm for line length 100 mm, width 1 mm |
| 聚碳酸酯 | Poliester | |
|---|---|---|
| Thickness | 0.175, 0.375 mm | 0.15, 0.2, 0.28 mm |
| Surface treatment | frosted | clear, frosted |
| Optical clarity | excellent | very good |
| Thixotropy | excellent | acceptable |
| Cutting and shaping | excellent | acceptable |
| Laser cutting | acceptable | excellent |
| Chemical resistance | acceptable | excellent |
| Stability in outdoor conditions | acceptable | acceptable |
| Resistance to wear and tear | acceptable | excellent |
| Service life | 50,000 - 200,000 changeovers* | 1.0 - 5.0 million switches ** |
| Thermal stability | excellent | acceptable |
| Thermal expansion | acceptable | excellent |



