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KMR 4 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
KMR421 LFS
KMR431 LFS
KMR431 ULC LFS
KMR432 LFS
2.0
3.0
3.0
3.0
(200)
(300)
(300)
(300)
±
±
±
±
0.50
0.75
0.75
0.75
200
150
150
300
000
000
000
000
0.25
0.30
0.30
0.30
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
KMR432 ULC LFS
3.0
(300)
±
0.75
300
000
0.30
mm
±
0.1
KMR441 LFS
KMR441 ULC LFS
KMR442 LFS
KMR442 ULC LFS
4.0
4.0
4.0
4.0
(400)
(400)
(400)
(400)
±
±
±
±
1.00
1.00
1.00
1.00
100
100
200
200
000
000
000
000
0.35
0.35
0.35
0.35
mm
mm
mm
mm
±
±
±
±
0.1
0.1
0.1
0.1
Process
Infrared Reflow Soldering in accordance with IEC61760-1
Packaging
In reels of 6,000 pieces for KMR 4
TACTILE FEELING: for KMR 4 series: ≥ 25%
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.
Part Number Description
For any part number different from those listed above, please consult your local representative.
K
M
R
4
3
1
N
G
U
L
C
L
F
S
Total height
4 2,5 mm
LFS Lead free compatible, silver plated
LFG Lead free compatible, gold plated
Actuation Force
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
B–11
www.ck-components.com
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KMR441ULCLFS 制造商:CK-COMPONENTS 制造商全称:C&K Components 功能描述:Microminiature SMT Top Actuated
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