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To download a PDF
of the Cherry Switches
Master Catalog,
click here.
To download the
latest version of
Adobe Acrobat Reader,
click
here.
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Features
- Desktop profile, 0.60 inch (15.2mm)
from PCB (no keycap)
- Choice of feel: linear, soft tactile, click tactile
- PCB or frame mount
- Long life 50 million operations
- 4mm travel
- LED, diode or jumper option
- 12V maximum AC/DC
- Current Rating: 10mA
- Insulation Resistance: <100MΩ at 100V DC
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| Specifications |
| Electrical |
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| Voltage: |
12 VAC/DC max.
2 VDC min. |
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| Current: |
10mA AC/DC max.
10µA DC min. |
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| Insulation Resistance: |
100MΩ at 100V |
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| Initial Contact Resistance: |
200mΩ (25mΩ typical) |
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| Bounce Time: |
≤5msec (at 16 in/sec. actuation speed) |
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| Capacitance: |
<2pF (at 1kHz) |
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| Operating Temperature: |
-10°C to +70°C |
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| Storage Temperature: |
-40°C to +70°C |
| Flammability Rating: |
UL94HB |
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| Materials |
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| Case: |
Thermoplastic |
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| Contacts: |
Silver-Gold?? (AuAg 10) |
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| Spring: |
Stainless Steel |
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| Solderability: |
Wave solder, 5 seconds at 500°F
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| Approvals |
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| Dimensions |
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Inches (mm)
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| Mounting Options |
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Inches (mm)
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| Circuit Board LayoutS |
| Keyswitch without Fixation Pins |
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| Keyswitch with Fixation Pins |
 |
| Spacebar without Frame |
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grid line spacing = 0.05 inch (1.27mm)
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| Keycap Dimensions |
| Cylindrical Type (7mm) |
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| Standard Type (8mm) |
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| Actuation Specifications |
| Mechanical Motion |
Linear Feel |
Soft Tactile Feel |
Click Tactile Feel |
Alternate Action |
| Operating Force |
2.1 oz.
±0.7 oz. |
2.0 oz.
±0.7 oz. |
1.8 oz.
±0.5 oz. |
2.1 oz.
±0.7 oz. |
| Pretravel |
0.08 in.
±0.024 in. |
0.08 in.
±0.024 in. |
0.09 in.
±0.024 in. |
0.05 in.
±0.015 in. |
| Total Travel |
0.16 in.
- 0.015 in. |
0.16 in.
- 0.02 in. |
0.16 in.
- 0.02 in. |
0.16 in.
- 0.01 in. |
| Tactile Force |
N/A |
2.3 oz.
±0.7 oz. |
2.1 oz.
±0.5 oz. |
N/A |
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| Spacebar Mounting Options |
| PCB (with pins) |
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| Metal Frame (without pins) |
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| Metal Frame Cutout Dimensions |
| Keyswitch |
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| Spacebar (Keycap sizes 1x2, 1x2.5, 1x2.75) |
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| Spacebar (Keycap sizes 1x3, 1x7, 1x8, 1x9, 1x10) |
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For dimension "A" refer to chart below. All dimensions shown are in inches.
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| Leveling Mechanism Kits |
| Keycap Size |
1x2
1x2.5
1x2.75 |
1x3 |
1x8 |
1x8
1x9
1x10 |
1x7 |
| Keycap Type |
Standard &
Cylindrical |
Standard &
Cylindrical |
Standard |
Cylindrical |
Cylindrical |
| Dimension "A" (inches) |
0.94 |
1.50 |
5.25 |
5.25 |
4.5 |
| Part Number with Frame |
G99-0224 |
G99-0225 |
G99-0226 |
G99-0226 |
G99-0379 |
| Part Number without Frame |
G99-0742 |
G99-0743 |
G99-0744 |
G99-0744 |
G99-0745 |
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| Ordering Information |
| Part Number Examples |
Description |
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| MX1A-11DN |
Standard force, momentary, face plate mount with diode |
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| MX1A-11NN |
Standard force, linear, face plate mount |
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| MX1A-11NW |
Standard force, linear, PCB mount |
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| MX1A-21NW |
Higher force, linear, PCB mount |
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| MX1A-31NN |
Alternate action, face plate mount |
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| MX1A-31NW |
Alternate action, PCB mount |
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| MX1A-C1NN |
Standard force, soft tactile, face plate mount |
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| MX1A-C1NW |
Standard force, soft tactile, PCB mount |
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| MX1A-E1NN |
Standard force, click tactile, face plate mount |
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| MX1A-E1NW |
Standard force, click tactile, PCB mount |
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| Ordering Information — Build a part number |
MX |
1 |
A |
1 |
1 |
n |
n |
Keyswitch
Series |
10mA,
12V max. |
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Code |
Contact Material |
1 |
AuAg10,
10mA,
12V max. |
5 |
Special |
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Code |
Contact Config. |
A |
SPST NO |
C |
Special |
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| Code |
Operating Characteristics, Actuating Force and Key Style |
0 |
Special |
1 |
Momentary, single-pole, 2.1 oz., standard keyswitch, black keystem |
2 |
Momentary, single-pole, 2.8 oz., spaceba, grey 37 keystem |
3 |
Alternate action, single-pole, 2.1 oz. |
C |
Momentary, single-pole, tactile feel, 2.3 oz., clear keystem |
D |
Momentary, single-pole, tactile feel, 2.8 oz., spacebar, grey 39 keystem |
E |
Momentary, single-pole, tactile feel, 2.1 oz., "click"differential movement, blue keystem |
F |
Momentary, single-pole, tactile feel, 2.8 oz., "click"differential movement, spacebar, green keystem |
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| Code |
Keystem Config. |
1 |
Standard
straight for cylindrical
and standard keycaps |
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| Code |
LED
Diode |
N |
No LED,
No diode |
R |
Red LED,
No diode |
G |
Green LED,
No diode |
Y |
Yellow LED,
with diode |
D |
No LED,
with diode |
J |
With
Jumper Wire,
no LED,
no diode |
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| Code |
PCB
Mountg Pins |
N |
No pins
(metal frame required) |
W |
With pins |
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| Specifications subject to change without notice. |
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