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Typical specifications include:
.020"-.060" switch travel
.008"-.010" flexible light source
Power consumption approx. .15mA/cm2
Generates approx. 1C above ambient
Operation temperature -30C to +80C
Typical half life => 10000 hours
Voltage range 20-200V AC
Frequency 50-3000Hz
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No light pipes to design or mold (translucent elastomer functions as a light pipe)
Fewer components compared to assemblies utilizing light pipes and light dams with plastic keycaps and/or mechanical switches
Variable tactile response from the dual layer construction
Different day and night graphic colors
Sealed top surface
Elastomeric graphic layer can be on a thin contoured surface
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EL backlighting has a shorter life than LEDs
Recommended for low light or nighttime viewing conditions because it is not as bright as LEDs
AC signal is required to power an EL display
Color options are typically more limited than LED color options |
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