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KSR Series
Subminiature Tact Switch for SMT
Features/Benefits
? Saves PCB space
? Range of 4 actuation forces
? G terminations
? N.O.
? Detect type available
? Rubber actuator
? IP 50 sealed
? RoHS compliant and compatible
Typical Applications
? Automotive
? Cellular phones & accessories
? Industrial electronics
? Computers & network equipment
B
Specification
FUNCTION: momentary action
CONTACT ARRANGEMENT: Normally Open
TERMINALS: Gullwing type for SMT
Mechanical
Electrical
MAXIMUM POWER:
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT DC:
MINIMUM CURRENT DC:
Silver
1 VA
32 VDC
20 mV
50 mA
1 mA
Gold
0.2 VA
32 VDC
20 mV
10 mA
1 mA
Type
KSR211/213
KSR221/223
KSR231/233
Operating force
Newtons (grams)
1,5 <Fa< 2,2
1,9 <Fa< 2,6
2,25 <Fa< 3,75
Operating life
(operations)
100,000
100,000
100,000
Travel
0,25 ± 0,15
0,3 ± 0,15
0,35 ± 0,15
CONTACT RESISTANCE: ≤ 100 m ?
INSULATION RESISTANCE: (100 V): 1G ? (between terminals)
BOUNCE TIME: 1 ms max.
KSR251/253
KSR223GNC
3,37 <Fa< 5,6
1,5 <Fa< 2,5
100,000
30,000
0,5 ± 0,15
0,3 ± 0,15
Environmental
OPERATING TEMPERATURE:
Silver
-40?C to 85?C
Gold
-40?C to 125?C
Overload: 20 Newtons
STORAGE TEMPERATURE:
-55?C to 85?C
-55?C to 125?C
Detect switch versions are available. Please see Detect chapter
KSR2D/M series.
Packaging
Switches are delivered on continuous tape, in reels of 2,500 pieces.
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.
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
Actuator
2 Soft actuator
LFS RoHS compliant and compatible. Silver plated.
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
LFG RoHS compliant and compatible. Gold plated.
Switch Function
(NONE) Normally open
NC Normally closed*
Termination
G Gull wing
3 Gold
*Available on KSR223G only.
Dimensions are shown: mm
Specifications and dimensions subject to change
9 aug 12
B–17
www.ck-components.com
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