This document provides specifications for round dome switches with dimples in various sizes, thicknesses, and part numbers. It lists dimensions, contact configurations, bounce times, temperature and humidity ranges, material properties, and other performance details. The switches are intended for over-travel applications and various industries like membrane switches, automotive, consumer electronics, medical, and appliances.

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GB Issue 1
ROUND DOME with DIMPLE
180g
240g
280g
350g
240g
280g
350g
400g
240g
280g
350g
400g
240g
280g
350g
400g
280g
350g
400g
Force
4mm
8mm
8mm
8mm
9mm
9mm
9mm
9mm
10mm
10mm
10mm
10mm
12mm
12mm
12mm
12mm
12.7mm
12.7mm
12.7mm
Size
Thickness
MD 4 - RDN - 180
MD 8 - RDN - 240
MD 8 - RDN - 280
MD 8 - RDN - 350
MD 9 - RDN - 240
MD 9 - RDN - 280
MD 9 - RDN - 350
MD 9 - RDN - 400
MD 10 - RDN - 240
MD 10 - RDN - 280
MD 10 - RDN - 350
MD 10 - RDN - 400
MD 12 - RDN - 240
MD 12 - RDN - 280
MD 12 - RDN - 350
MD 12 - RDN - 400
MD 12.7 - RDN - 280
MD 12.7 - RDN - 350
MD 12.7 - RDN - 400
0.05
0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
2.00
4.00
4.00
4.00
4.00
4.50
4.50
4.50
5.00
5.00
5.00
5.00
6.00
6.00
6.00
6.00
6.35
6.35
6.35
0.22
0.32
0.33
0.34
0.36
0.38
0.40
0.42
0.36
0.36
0.37
0.42
0.37
0.43
0.46
0.44
0.40
0.43
0.45
8.00
8.00
8.00
9.00
9.00
9.00
9.00
9.00
10.00
10.00
10.00
10.00
12.00
12.00
12.00
12.00
12.70
12.70
12.70
Part No
Dimensions (mm)
A B C
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
2.60
2.60
2.60
2.60
2.60
2.60
2.60
2.60
2.60
2.60
2.60
2.60
2.80
2.80
2.80
2.80
2.80
2.80
2.80
2.40
2.40
2.40
2.40
2.40
2.40
2.40
2.40
2.40
2.40
2.40
2.40
2.60
2.60
2.60
2.60
2.60
2.60
2.60
X Y Z
A
X Z
Y
B
C
Contact Resistance
with Gold or Silver Plating
Voltage/Current Maximum
Breakdown Voltage
Material
Life Expectancy
<100 ohms
<1 ohm
12mA @ 24 Volts DC, RL
Over 200 Volts
Stainless Steel Type 304
1 Million
Contact Configuration
Contact Bounce (on)
Contact Bounce (off)
Operating Temperature
Storage Temperature
Humidity
SPST, Normally Open
<0.3ms
<6ms
-55°C to 125°C
-55°C to 125°C
0-97% (no condensation)
Stable Forces per Batch Number
Excellent Tactile Effect
100% Traceability per Batch Number
Competitive Pricing
Superior Quality
Ideal for over-travel applications
Used in a multitude of Industries, such as:
Membrane Switch, Automotive, Consumer
Electronics, Medical, Appliance, etc
RoHS Compliant RoHS
with Large Dimple