KMR431GLFS Datasheet, PDF (1/2 Pages) C&K Components – Microminiature SMT Top Actuated

KMR 4 Series
Microminiature SMT Top Actuated
Features/Benefits
• Long Life version
• 4 actuation forces
• Optional ground pin
• Ultra low current capabilities
• Excellent tactile feel
Typical Applications
• Automotive
• Cellular phones
• Industrial electronics
• Medical equipment
B
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: Gullwing type for SMT
Mechanical
Type G and NG
(except gold
version G only)
See description
below
KMR421 LFS
KMR431 LFS
KMR431 ULC LFS
KMR432 LFS
KMR432 ULC LFS
KMR441 LFS
KMR441 ULC LFS
KMR442 LFS
KMR442 ULC LFS
Operating
force
N (grs)
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
4.0 (400) ± 1.00
4.0 (400) ± 1.00
4.0 (400) ± 1.00
4.0 (400) ± 1.00
Operating
life
(cycles)
200 000
150 000
150 000
300 000
300 000
100 000
100 000
200 000
200 000
Travel (mm)
0.25 mm ± 0.1
0.30 mm ± 0.1
0.30 mm ± 0.1
0.30 mm ± 0.1
0.30 mm ± 0.1
0.35 mm ± 0.1
0.35 mm ± 0.1
0.35 mm ± 0.1
0.35 mm ± 0.1
TACTILE FEELING: for KMR 4 series: ≥ 25%
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*
*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
Infrared Reflow Soldering in accordance with IEC61760-1
Packaging
In reels of 6,000 pieces for KMR 4
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.
KMR
4
3
1
NG
ULC
LFS
Total height
4 2,5 mm
Actuation Force
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
Grounding option
G Ground pin
NG No Ground pin
LFS Lead free compatible, silver plated
LFG Lead free compatible, gold plated
Low Current capability
Void Under standard specification
ULC Low current
B–11
Dimensions are shown: mm
Specifications and dimensions subject to change
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