KMR 4 Series
Microminiature SMT Top Actuated
Features/Benefits
•
Small footprint
•
4 actuation forces
•
Excellent tactile feel
•
Ultra low current capabilities
•
IP40
Typical Applications
•
Automotive
•
Industrial electronics
•
Medical equipment
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: Gullwing type for SMT
Electrical
MAXIMUM POWER:
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT:
MINIMUM CURRENT:
DIELECTRIC STRENGTH:
CONTACT RESISTANCE:
INSULATION RESISTANCE:
BOUNCE TIME:
Silver
1 VA
32 VDC
20 mVDC
50 mA
1 mA*
≥ 250 Vrms
≤ 100 mΩ
≥ 1GΩ
≤ 3 ms
Gold
0.2 VA
32 VDC
20 mVDC
10 mA
1 mA*
Tactile Switches
Mechanical
Type G and NG
See description
below
KMR411 LFS
KMR411 ULC LFS
KMR413 LFG
KMR413 ULC LFG
KMR421 LFS
KMR421 ULC LFS
KMR423 LFG
KMR423 ULC LFG
KMR431 LFS
KMR431 ULC LFS
KMR432 LFS
KMR432ULC LFS
KMR433 LFG
KMR433ULC LFG
KMR441 LFS
KMR441 ULC LFS
KMR442 LFS
KMR442 ULC LFS
KMR443 LFG
KMR443 ULC LFG
Operating
force
N (grs)
1.2 (120) ± 0.30
1.2 (120) ± 0.30
1.2 (120) ± 0.30
1.2 (120) ± 0.30
2.0 (200) ± 0.50
2.0 (200) ± 0.50
2.0 (200) ± 0.50
2.0 (200) ± 0.50
3.0 (300) ± 0.75
3.0 (300) ± 0.75
3.0 (300) ± 0.75
3.0 (300) ± 0.75
3.0 (300) ± 0.75
3.0 (300) ± 0.75
4.0 (400) ± 1.00
4.0 (400) ± 1.00
4.0 (400) ± 1.00
4.0 (400) ± 1.00
4.0 (400) ± 1.00
4.0 (400) ± 1.00
Operating
life
(cycles)
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
300,000
300,000
100,000
100,000
100,000
100,000
200,000
200,000
100,000
100,000
Travel (mm)
0.20 mm ±
0.20 mm ±
0.20 mm ±
0.20 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.25 mm ±
0.30 mm ±
0.30 mm ±
0.30 mm ±
0.30 mm ±
0.30 mm ±
0.30 mm ±
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
*For ULC version minimum current is 1µA at 1.8 VDC
Environmental
OPERATING TEMPERATURE:
STORAGE TEMPERATURE:
Silver
-40˚C to 85˚C
-55˚C to 85˚C
Gold
-40˚C to 125˚C
-55˚C to 125˚C
Process
Soldering: Lead free reflow soldering process in accordance with
IEC 61760-1.
Packaging
In reels of 6,000 pieces
External diameter 330 mm ± 2 mm
NOTE:
Specifications listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
TACTILE FEELING:
KMR 4 series with actuation force in 2N - 3N - 4N: ≥ 25%
KMR 4 series with actuation force in 1.2N: ≥ 20%
Part Number Description
For any part number different from those listed above, please consult your local representative.
K
M
R
4
Total height
4
2,5 mm
Actuation Force
1
1.2 N (120 grams)
2
2 N (200 grams)
3
3 N (300 grams)
4
4 N (400 grams)
Contact Material
1
Silver
2
Silver long life*
3
Gold
LFS
Lead free compatible, silver plated
LFG
Lead free compatible, gold plated
Low Current capability
Void
Under standard specification
ULC
Low current
Grounding option
G
Ground pin
NG
No Ground pin
* Silver long life is available in 3N and 4N actuation force. For other versions,
please contact Customer Service.
Dimensions are shown: mm
Specifications and dimensions subject to change
8 jun 16
B–13
www.ckswitches.com
KMR 4 Series
Microminiature Tact Switch for SMT
KMR 4 Series - 2.5 mm height
PCB layout shown with ground pin option
B
Tactile Switches
4,6
4,2
0,6
0,6
2,11
3,2
1,7
0,55
2,45
5
1
0,6
2,6
1,61
2,2
2,8
1,4
2,5
TAPE & REEL
DE-REELING DIRECTION
OUT OF THE TAPE
SECTION A-A
6
0
max
2,75 ± 0,1
4 ± 0,1
2 ± 0,05
ø 1,5 ± 0,1
12
-0,1
5,5 ± 0,05
+0,3
1,75
B
A
A
6
0
max
0,292 ± 0,02
GROUND TERMINAL
3,03 ± 0,1
B
Dimensions are shown: mm
Specifications and dimensions subject to change
8 jun 16
B–14
www.ckswitches.com
4,95 ± 0,1
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