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KMR 2 Series
Microminiature SMT Top Actuated
Features/Benefits
? Long Life version
? 4 actuation forces
? Optional ground pin
? Ultra low current capabilities
Typical Applications
? Automotive
? Cellular phones
? Industrial electronics
? Medical equipment
? Excellent tactile feel
B
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: Gullwing type for SMT
Mechanical
Type G and NG
Electrical
MAXIMUM POWER:
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT:
MINIMUM CURRENT:
DIELECTRIC STRENGTH:
CONTACT RESISTANCE:
Silver
1 VA
32 VDC
20 mVDC
50 mA
1 mA*
≥ 250 Vrms
≤ 100 m ?
Gold
0.2 VA
32 VDC
20 mVDC
10 mA
1 mA*
(except gold
Operating
Operating
INSULATION RESISTANCE:
≥ 1G ?
version G only)
force
life
Travel (mm)
BOUNCE TIME:
≤ 3 ms
See description
below
N (grs)
(cycles)
*For ULC version minimum current is 1μA at 1.8 VDC
KMR211 LFS
KMR213 LFG
KMR221 LFS
KMR223G LFG
1.2
1.2
2.0
2.0
(120)
(120)
(200)
(200)
±
±
±
±
0.30
0.30
0.50
0.50
200
200
200
200
000
000
000
000
0.20
0.20
0.25
0.25
mm
mm
mm
mm
±
±
±
±
0.1
0.1
0.1
0.1
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
KMR231 LFS
3.0
(300)
±
0.75
150
000
0.25
mm
±
0.1
KMR233G LFG
KMR231 ULC LFS
KMR232 LFS
KMR232 ULC LFS
KMR241 LFS
KMR243G LFG
KMR241 ULC LFS
KMR242 LFS
KMR242 ULC LFS
3.0
3.0
3.0
3.0
4.0
4.0
4.0
4.0
4.0
(300)
(300)
(300)
(300)
(400)
(400)
(400)
(400)
(400)
±
±
±
±
±
±
±
±
±
0.75
0.75
0.75
0.75
1.00
1.00
1.00
1.00
1.00
150
150
300
300
100
100
100
200
200
000
000
000
000
000
000
000
000
000
0.25
0.25
0.25
0.25
0.30
0.30
0.30
0.30
0.30
mm
mm
mm
mm
mm
mm
mm
mm
mm
±
±
±
±
±
±
±
±
±
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
Process
Infrared Reflow Soldering in accordance with IEC61760-1
Packaging
In reels of 7,000 pieces for KMR 2
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: for KMR 2 series: ≥ 30% (1.2N at 20%)
Part Number Description
For any part number different from those listed above, please consult your local representative.
K
M
R
2
3
1
N
G
U
L
C
L
F
S
Total height
2 1,9 mm
LFS Lead free compatible, silver plated
LFG Lead free compatible, gold plated
Actuation Force
1 1.2 N (120 grams)
2 2 N (200 grams)
3 3 N (300 grams)
4 4 N (400 grams)
Low Current capability
Contact Material
1 Silver
2 Silver long life
3 Gold
Grounding option
G Ground pin
NG No Ground pin
Void Under standard specification
ULC Low current
Dimensions are shown: mm
Specifications and dimensions subject to change
9 aug 12
B–9
www.ck-components.com
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