KMR 2 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
KMR211 LFS
KMR211 ULC LFS
KMR213 LFG
KMR213 ULC LFG
KMR221 LFS
KMR221 ULC LFS
KMR223 LFG
KMR223 ULC LFG
KMR231 LFS
KMR231 ULC LFS
KMR232 LFS
KMR232 ULC LFS
KMR233 LFG
KMR233 ULC LFG
KMR241 LFS
KMR241 ULC LFS
KMR242 LFS
KMR242 ULC LFS
KMR243 LFG
KMR243 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)
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
150,000
150,000
300,000
300,000
150,000
150,000
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 7,000 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 2 series with actuation force in 2N - 3N - 4N: ≥ 30%
KMR 2 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
2
Total height
2
1,9 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
Dimensions are shown: mm
Specifications and dimensions subject to change
* Silver long life is available in 3N and 4N actuation force. For other versions, please contact Customer Service.
8 jun 16
B–11
www.ckswitches.com
KMR 2 Series
Microminiature Tact Switch for SMT
KMR 2 Series - 1.9 mm height
PCB layout shown with ground pin option
B
Tactile Switches
0,6
4,6
4,2
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
1,9
TAPE & REEL
DE-REELING DIRECTION
OUT OF THE TAPE
SECTION A-A
7
0
max
2,13 ± 0,1
4 ± 0,1
2 ± 0,05
ø 1,5 ± 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
ø 1,5
0
+0,25
DIRECTION OF FEED
Dimensions are shown: mm
Specifications and dimensions subject to change
8 jun 16
B–12
www.ckswitches.com
4,95 ± 0,1
12
-0,1
