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Metal Dome Array / Metal dome switch General Specification

No.

Technical indicators Category General Specifications

Corresponding to the testing equipment

1

Key life Round
1. You can hit one million times;
2. Force and Click Ratio test one million times , compared with the initial value, the rate of change & lt; 30%;
.Waist Round
1. The industry requires 50 million times, a million times according to our requirements for testing;
2. Force and Click Ratio test 500,000 times, compared with the initial value, the rate of change & lt; 30%;

GP-RA-500-3Life Tester

2

Shrapnel shape Round /oblong / waist round / legs in shape / triangle / Alien ( Custom as per requirement )

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3

Force/Click Ratio Force:100gf~300gf; (Tolerance:±20gf)
Click Ratio: 50±15% (Conventional)

Manual or S205 load curve tester

4

Shrapnel trip 0.13~0.22mm (Due to the different specifications of shrapnel varies)

S205 load curve tester

5

Dimensional tolerances Feed shrapnel Tolerance: + 0, -0.05mm (General)
Positioning hole tolerance:+0.05mm;
Outline Tolerance:±0.1mm;
Dome to Dome Center tolerance:±0.13mm;
The positioning hole to the center of tolerance Dome:±0.15mm;
The positioning hole to hole of the positioning tolerance:±0.1mm;

JT-300A Projector

6

High temperature and humidity 85±5℃,By placing RH90% 48H, after the test recovery 2H at room temperature.

LTH-A-80 programmable temperature and humidity testing machine

7

Salt spray test Temperature 35 ± 2 ℃, the concentration of the salt solution 5 ± 1% (weight percentage) time 24 ± 1 hour after the test salt deposits to flush;

Salt spray test machine

8

Shrapnel nickel plated layer thickness .0.2~0.3μm;

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9

Early plastic material Test 4↑(Unit:No/Ball)

Plastic materials early strength tester

10

Plastic timber holding power test 8↑(Unit:hr/kg*inch)

Plastic timber holding force tester

11

Plastic material adhesion test 0.6↑(Unit:kgf/inch)

Plastic material Adhesion Tester

12

Plastic timber shrinkage MD(%):0.5 ↓ CD(%):0.3 ↓
(Unit:100℃*40mins)

Shrinking Oven

13

Electrostatic shielding resistance <1Ω、2Ω、3Ω; (Full screen / grid both)

TH2511DC low resistance tester

14

Momentary contact resistance <1Ω

15

Shielding hardness test 2HPencil

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16

Shielding adhesion test 3M800#Test tape

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17

Metal Dome Total height 0.28~0.305mm (Conventional)

Feeler

18

The total thickness of the substrate 0.05mm、0.075mm、0.1mm、0.125mm;
(Thickness the above-described four kinds of common)

Feeler

19

Dimple number of point selection The number of shrapnel little concave;
0/1/3/4/5;

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