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Force-Stroke Curve of Rubber Keypad
Keypad Standard Dimensional Tolerances:
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LIFE TEST​
â–ª Material Hardness: 50 Shore A is preferred.
â–ª Low Stroke: less than 1mm.
â–ª Angle (As illustrated in A): 40° is recommended.
â–ª Length of sidewall (As illustrated in B): longer is better.
â–ª Thickness of sidewall (As illustrated in C): determined by key structure, thicker will have longer life.
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