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Rigid Membrane Keypads
| Rigid keypads carry out switching functions and enhance the final product with a tailored decorative appearance. They can be directly connected to the electronic equipment via a pcb mounted connector of your choice. They consist of several layers of polyester, double sided PCB or stainless steel/aluminium support plate. Associated electronic assembly can be added to the rear of the PCB |
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| The technologies | ||||||
Without tactile feedback  |
With tactile feedback by snap dome  |
With tactile feedback by key embossing  |
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| Mechanical specifications | ||||||
| Contact force :2 N +/- 20% Contact travel :0,21 mm +/-15% Type of contact :silver ink Operations :10 000 000 |
Contact force :2.5 N +/- 20% Contact travel :0,48 mm +/-15% Type of contact : stainless steel dome + silver ink Operations :1 000 000 Snap Dome 6 to 20mm |
Contact force :1 to 4 N +/- 30
% Contact travel :0,5 to 1 mm +/-15% Type of contact :silver ink Operations :1 000 000 |
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PCB specification |
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| PCB Track Finish Copper tin Gold over nickel Gold Flash Solder masking |
PCB Thickness 0.80mm 1.60mm 2.4mm 3.2mm |
Customer Specified Components Connectors PEM Studs PEM Standoffs Associated Electronics |
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| Climatic specifications | ||||||
| Operating temperature : - 25° to + 65°C Storage temperature : - 30° to + 85°C Front face sealing : IP 65 |
Operating temperature : - 25° to + 65°C Storage temperature : - 30° to + 85°C Front face sealing : IP 65 |
Operating temperature : - 25° to + 40°C Storage temperature : - 30° to + 70°C Front face sealing : IP 65 |
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| Electrical specifications | ||||||
| Nominal operating voltage : 24 V Maximum operating voltage : 50 V Minimum operating voltage : 1 V Nominal intensity : 30 mA Maximum switchable power : 500 mW Contact circuit resistance : 1 ohm/cm (1 mm track) Dielectric strength : 250 V rms. Insulation resistance at 100 V : > 100 Mohms Maximum contact bounce : < 5 ms Compatible with TTL & CMOS circuits |
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Apem Components Ltd
Drakes Drive, Long Crendon
Buckinghamshire
HP18 9BA. U.K
Tel +44 (0)1844 202400 Fax
+44 (0)1844 202500
