PRODUCT FEATURES
Silicon rubber keypads
support multiple printed and molded colors, spray, textures and graphic
backlighting effects. These solutions provide a soft feel silicone rubber
key-top hardness range from 30 to 90 shore A, flexible in size and shape to meet
all customer design needs. Switch contact solutions range from low cost carbon
pill printed on rubber pad (typically less than 2000 hms) to high performance
co-molded gold pill (typically less than 10 hms).
(1) Tactile Characteristics of Keys:
(2) Standard Properties for Various Applications:
|
Application
|
Phone
|
TV&VTR
|
Electronic Calculator
|
Car Stereo
|
Electronics
|
Type Writer
|
|
Stroke
|
1.5-3.5
|
0.1-1.5
|
0.3-0.6
|
1.5-2.0
|
0.3-0.6
|
3-4
|
|
Actuation Force
|
120-200g
|
30-100g
|
60-90g
|
60-100g
|
60-90g
|
70-90g
|
|
Life (x106)
|
100-200
|
100-150
|
50-80
|
50-60
|
10
|
1000-1500
|
(3 )Typical Keyboard Specifications:
|
|
Conductor
|
Insulator
|
|
Material
|
Carbon Pill
|
Silicone
|
|
Durometer (Shore A)
|
65±5
|
30-80 +/-
|
|
Tensile Strength (kg/cm2)
|
≥60
|
≥70
|
|
Tear Strength (kg/cm)
|
>9
|
>12
|
|
Compression Set (%) after 22hrs at 175℃
|
<30
|
<35
|
|
After 22 hrs at 175℃ Specific Gravity at 25℃
|
1.18
|
1.11-1.18
|
|
Volume Resistivity(Ohm/CM)
|
2-10
|
1x1015
|
|
Contact Resistance
|
≤200ohm at 12V D
|
|
Insulations Resistance
|
≥100Mohm at250V DC
|
|
Max Contact Loading
|
24V dc 100mA
|
|
Operation Temperature
|
-40℃ to +150℃
|
|
Storage Temperature
|
-50℃ to +180℃
|
|
Surface Finishing
|
Print silicone oil, inferior silicone oil, PU oil, drop glue, plastic joint, laser, PC joint
|
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