In general, the test items for the metal dome array (also called dome sheet), we have below items:
1.PET adhesive sheet degree testing(-35 degrees to +75 degrees); 2.PET peeling force testing:0.8kg ± 50g. 3.10% of dome array random sampling inspection(100 million times life,plating, the tolerance of metal dome force ± 30g, click feeling between 35-60%, appearance,stroke). 4.Tolerance of the holes and outline (tolerance ± 0.15 mm),dirty, bruised, or broken, dubble dome, lack of metal domes. 5.EMI contact resistance is less than 3 ohms.
The metal dome array of our company: thin, feel good, easy assembly, high pass rate, low price, if you have inquires in this area, please feel free to contact our sales staff! ! !