* Silver long life is available in 3N and 4N actuation force. For other versions,
please contact Customer Service.
B–13
Dimensions are shown: mm
Specifications and dimensions subject to change
www.ck-components.com
Tactile Switches
B
8 jun 16
Features/Benefits
•
Small footprint
•
4 actuation forces
•
Excellent tactile feel
•
Ultra low current capabilities
•
IP40
KMR 4 Series
Microminiature SMT Top Actuated
Typical Applications
•
Automotive
•
Industrial electronics
•
Medical equipment
Electrical
Silver Gold
MAXIMUM POWER: 1 VA 0.2 VA
MAXIMUM VOLTAGE: 32 VDC 32 VDC
MINIMUM VOLTAGE: 20 mVDC 20 mVDC
MAXIMUM CURRENT: 50 mA 10 mA
MINIMUM CURRENT: 1 mA* 1 mA*
DIELECTRIC STRENGTH: ≥ 250 Vrms
CONTACT RESISTANCE: ≤ 100 mΩ
INSULATION RESISTANCE: ≥ 1GΩ
BOUNCE TIME: ≤ 3 ms
*For ULC version minimum current is 1µA at 1.8 VDC
Environmental
Silver Gold
OPERATING TEMPERATURE: -40˚C to 85˚C -40˚C to 125˚C
STORAGE TEMPERATURE: -55˚C to 85˚C -55˚C to 125˚C
Process
Infrared Reflow Soldering in accordance with IEC61760-1
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.
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: Gullwing type for SMT
Mechanical
Total height
4
2,5 mm
LFS Lead free compatible, silver plated
LFG Lead free compa
tible,
gold pla
ted
Actuation Force
1
1.2 N (120 grams)
2 2 N (200 grams)
3 3 N (300 g
rams)
4 4 N (400 g
rams)
K M R 4
Contact Material
1
Silver
2 Silver long life*
3 Gold
Grounding option
G
Ground pin
NG No Ground pin
Low Curr
ent capability
Void
Under standard specification
ULC Low current
Part Number Description
For any part number dif
fer
ent fr
om those listed above, please consult your local r
epr
esentative.
TACTILE FEELING: KMR 4 series with actuation force in 2N - 3N - 4N: ≥ 25%
KMR 4 series with actuation force in 1.2N: ≥ 20%
KMR411 LFS
1.2 (120) ± 0.30 100,000 0.20 mm ± 0.1
KMR411 ULC LFS 1.2 (120) ± 0.30 100,000 0.20 mm ± 0.1
KMR413 LFG 1.2 (120) ± 0.30 100,000 0.20 mm ± 0.1
KMR413 ULC LFG 1.2 (120) ± 0.30 100,000
0.20 mm ± 0.1
KMR421 LFS 2.0 (200) ± 0.50 100,000 0.25 mm ± 0.1
KMR421 ULC LFS 2.0 (200) ± 0.50 100,000 0.25 mm ± 0.1
KMR423 LFG 2.0 (200) ± 0.50 100,000 0.25 mm ± 0.1
KMR423 ULC LFG 2.0 (200) ± 0.50 100,000 0.25 mm ± 0.1
KMR431 LFS 3.0 (300) ± 0.75 100,000 0.25 mm ± 0.1
KMR431 ULC LFS 3.0 (300) ± 0.75 100,000 0.25 mm ± 0.1
KMR432 LFS 3.0 (300) ± 0.75 300,000 0.25 mm ± 0.1
KMR432ULC LFS 3.0 (300) ± 0.75 300,000 0.25 mm ± 0.1
KMR433 LFG 3.0 (300) ± 0.75 100,000 0.25 mm ± 0.1
KMR433ULC LFG 3.0 (300) ± 0.75 100,000 0.25 mm ± 0.1
KMR441 LFS 4.0 (400) ± 1.00 100,000 0.30 mm ± 0.1
KMR441 ULC LFS 4.0 (400) ± 1.00 100,000 0.30 mm ± 0.1
KMR442 LFS 4.0 (400) ± 1.00 200,000 0.30 mm ± 0.1
KMR442 ULC LFS 4.0 (400) ± 1.00 200,000 0.30 mm ± 0.1
KMR443 LFG 4.0 (400) ± 1.00 100,000 0.30 mm ± 0.1
KMR443 ULC LFG 4.0 (400) ± 1.00 100,000 0.30 mm ± 0.1
Type G and NG
See description
below
Operating
force
N (grs)
Operating
life
(cycles)
Travel (mm)
