KSR Series
Subminiature Tact Switch for SMT
Features/Benefits
•
4 actuation forces
•
G terminations
•
N.O. and N.C.
•
Detect type available
•
Rubber actuator
•
RoHS compliant and compatible
Typical Applications
•
Automotive
•
Medical equipment
•
Industrial electronics
•
Smart meters
B
Tactile Switches
Electrical
MAXIMUM POWER:
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT DC:
MINIMUM CURRENT DC:
Travel
(mm)
0,25 ± 0,15
0,3 ± 0,15
0,35 ± 0,15
0,5 ± 0,15
0,3 ± 0,15
0,3 ± 0,15
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: Normally Open
TERMINALS: Gullwing type for SMT
Silver
1 VA
32 VDC
20 mV
50 mA
1 mA
Gold
0.2 VA
32 VDC
20 mV
10 mA
1 mA
Mechanical
Type
KSR211G
KSR221G
KSR231G
KSR251G
KSR221G
KSR223G
LFS / KSR213G LFG
LFS / KSR223G LFG
LFS /KSR233G LFG
LFS / KSR253G LFG
NC LFS
NC LFG
Operating force
Newtons (grams)
1,5 < 1,85 (185) < 2,2
1,9 < 2,25 (225) < 2,6
2,25 < 3,00 (300)< 3,75
3,4 < 4,50 (450) < 5,6
1,5 < 2,25 (225) < 3
1,5 < 2 (200) < 2,5
Operating life
(operations)
100,000
100,000
100,000
100,000
30,000
30,000
CONTACT RESISTANCE: ≤ 100 mΩ
INSULATION RESISTANCE: (100 V): 1G Ω (between terminals)
BOUNCE TIME: 1 ms max.
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
Overload: 20 Newtons
Detect switch versions are available. Please see Detect chapter
KSR2D/M series.
Process
SOLDERING: Lead free reflow soldering process in accordance
with IEC 61760-1.
NOTE:
Specifications listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
Packaging
Switches are delivered on continuous tape, in reels of 2,500 pieces.
How To Order
Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select
desired option from each category and place it in the appropriate box.
However, please note that all the combinations of these options are not feasible.
For any part number different from those listed above, please consult your local representative.
K
S
R
2
G
Actuator
2
Soft actuator
Operating Force
1
1.8 N (180 grams)
2
2.0 N (200 grams)
3
3.0 N (300 grams)
5
4.5 N (450 grams)
Contact Material
1
Silver
3
Gold
LFS
RoHS compliant and compatible. Silver plated.
LFG
RoHS compliant and compatible. Gold plated.
Switch Function
(NONE)
Normally open
NC
Normally closed*
Termination
G
Gull wing
*Available on KSR223G only.
Dimensions are shown: mm
Specifications and dimensions subject to change
B–43
www.ckswitches.com
KSR Series
Subminiature Tact Switch for SMT
KSR
ø 1,9
B
Tactile Switches
7,3
6
1,75
2,5
Recommended PCB layout
1,4
6
8
TAPE & REEL
2,8
1,75
0,25
2
2
8
4
ø1,5
A
6,25
7,65
12
5,5
3,8
1
2,1
4
ø1,5
A
DIRECTION OF FEED
Dimensions are shown: mm
Specifications and dimensions subject to change
B–44
www.ckswitches.com
KSR Long Life-200,000 cycles-Gold and Silver Series
Subminiature Tact Switch for SMT
Features/Benefits
•
4 actuation forces
•
G terminations
•
N.O.
•
Detect type available
•
Rubber actuator
•
IP50 sealed
•
RoHS compliant and compatible
Typical Applications
•
Automotive
•
Medical equipment
•
Industrial electronics
B
Tactile Switches
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: Normally Open
TERMINALS: Gullwing type for SMT
Electrical
MAXIMUM POWER:
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT DC:
MINIMUM CURRENT DC:
Travel
(mm)
0,25 ± 0,15
0,3 ± 0,15
0,35 ± 0,15
0,5 ± 0,15
0,25 ± 0,15
0,3 ± 0,15
0,35 ± 0,15
0,5 ± 0,15
Silver
1 VA
32 V dc
20 m Vdc
50 mA
1 mA
Gold
0.2 VA
32 V dc
20 m Vdc
10 mA
1 mA
Mechanical
Type
Silver versions
KSR212G LFS
KSR222G LFS
KSR232G LFS
KSR252G LFS
Gold versions
KSR214G LFS
KSR224G LFS
KSR234G LFS
KSR254G LFS
Operating force(Fa) Operating life
Newtons (grams)
(operations)
1,5 < 1,85 (185) < 2,2
1,9 < 2,25 (225) < 2,6
2,25 < 3,00 (300)< 3,75
3,4 < 4,50 (450) < 5,6
1,5 < 1,85 (185) < 2,2
1,9 < 2,25 (225) < 2,6
2,25 < 3,00 (300)< 3,75
3,4 < 4,50 (450) < 5,6
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
CONTACT RESISTANCE: ≤ 100 m Ω
INSULATION RESISTANCE (100 V): 1 G Ω (between terminals)
BOUNCE TIME: 1 ms max
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: Compatible with lead free reflow soldering process.
NOTE:
Specifications listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
OVERLOAD: 20 Newtons
Packaging
Switches are delivered on continuous tape, in reels of 2,500 pieces.
How To Order
Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select
desired option from each category and place it in the appropriate box.
However, please note that all the combinations of these options are not feasible.
For any part number different from those listed above, please consult your local representative.
K
S
R
2
G
Actuator
2
Soft actuator
Operating Force
1
1.8 N (180 grams)
2
2.0 N (200 grams)
3
3.0 N (300 grams)
5
4.5 N (450 grams)
Contact Material
2
Silver
4
Gold
LFS
RoHS compliant and compatible. Silver plated.
LFG
RoHS compliant and compatible. Gold plated.
Termination
G
Gull wing
Dimensions are shown: mm
Specifications and dimensions subject to change
B–45
www.ckswitches.com
KSR Long Life-200,000 cycles-Gold and Silver Series
Subminiature Tact Switch for SMT
KSR
ø 1,9
B
Tactile Switches
7,3
6
1,75
2,5
TERMINATION
Recommended PCB layout
1,4
6
8
2,8
1,75
0,25
2
2
8
4
ø1,5
3,8
1
TAPE & REEL
A
6,25
7,65
12
5,5
2,1
4
ø1,5
A
DIRECTION OF FEED
Dimensions are shown: mm
Specifications and dimensions subject to change
B–46
www.ckswitches.com
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