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RD Series
RD Series metal domes are round shaped switch contacts that were designed for mounting on membrane circuitry. The domes are placed on a membrane switch by means of pressure sensitive adhesive tape. When they are pushed, the centers of the domes collapse past the flat plane and make contact with the secondary pathway, thereby closing the circuit.
If you need very low resistance or your product is operated by battery,you can choose sperical material,for gold-plated, silver-plated and Nickel-plated. |
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Size |
Shape |
A |
B |
Force |
4.0mm |
Round, With Dimple, No Feet，Nickel-plated |
4.0 |
0.22 |
180g |
4.0mm |
Round, With Dimple, No Feet，Nickel-plated |
4.0 |
0.24 |
200g |
4.0mm |
Round, With Dimple, No Feet，Nickel-plated |
4.0 |
0.25 |
250g |
4.5mm |
Round, With Dimple, No Feet，Nickel-plated |
5.0 |
0.24 |
180g |
5.0mm |
Round, With Dimple, No Feet，Nickel-plated |
5.0 |
0.23 |
130g |
5.0mm |
Round, With Dimple, No Feet，Nickel-plated |
5.0 |
0.25 |
180g |
5.0mm |
Round, With Dimple, No Feet，Nickel-plated |
5.0 |
0.26 |
200g |
5.0mm |
Round, With Dimple, No Feet，Nickel-plated |
5.0 |
0.26 |
250g |
8.0mm |
Round, With Dimple, No Feet |
8.0 |
0.32 |
240g |
8.0mm |
Round, With Dimple, No Feet |
8.0 |
0.33 |
280g |
8.0mm |
Round, With Dimple, No Feet |
8.0 |
0.34 |
350g |
9.0mm |
Round, With Dimple, No Feet |
8.0 |
0.36 |
240g |
9.0mm |
Round, With Dimple, No Feet |
9.0 |
0.38 |
280g |
9.0mm |
Round, With Dimple, No Feet |
9.0 |
0.40 |
350g |
9.0mm |
Round, With Dimple, No Feet |
9.0 |
0.42 |
400g |
10.0mm |
Round, With Dimple, No Feet |
10.0 |
0.36 |
240g |
10.0mm |
Round, With Dimple, No Feet |
10.0 |
0.36 |
280g |
10.0mm |
Round, With Dimple, No Feet |
10.0 |
0.37 |
350g |
10.0mm |
Round, With Dimple, No Feet |
10.0 |
0.42 |
400g |
12.0mm |
Round, With Dimple, No Feet |
12.0 |
0.37 |
240g |
12.0mm |
Round, With Dimple, No Feet |
12.0 |
0.43 |
280g |
12.0mm |
Round, With Dimple, No Feet |
12.0 |
0.46 |
350g |
12.0mm |
Round, With Dimple, No Feet |
12.0 |
0.44 |
400g |
12.7mm |
Round, With Dimple, No Feet |
12.7 |
0.40 |
280g |
12.7mm |
Round, With Dimple, No Feet |
12.7 |
0.43 |
350g |
12.7mm |
Round, With Dimple, No Feet |
12.7 |
0.45 |
400g |
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| *The above data is reference value.All measurements in millimeters. |
| *As the continuing introduction of new specifications, the above is only part of the specification, For inquiries, please contact us for more specifications. |
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