Single Layer
This type of metal dome array (dome array) is used in the early period of metal dome arrays (dome arrays) industry. Metal dome contacts are attached under Maylar (one layer of adhesive PET film). On the sheet, there is an air hole for each dome contact and it is essential for good click-feeling.
Character:
1. light & small
2. Nice handle & returned dome with breathe freely hole on metal dome.
3. Mainly used in cheap single layer PCB.
Structure of dome araray
|
Technical Parameter |
| Total Height: |
0.28-0.45 mm |
|
| Travel: |
0.13-0.30 mm |
| Scope of Force: |
100-400 gf |
| Tolerance of Force: |
25 gf |
| Click Ratio: |
>30% |
| Life Cycles: |
>1 Million Cycles |
| Salt and Fog Examination: |
v352C, 50.1%, 48H |
| Working Temperature: |
-20C-50C |
| Working Humidity: |
Under 100%RH |
| Touch Resistance: |
<1 ohm |
| ESD Resistance: |
<3 ohm |
| Dimension Tolerance: |
0.05-0.15mm |
| |
Membrane Switches
