KST Series
Long Travel Tact Switch for SMT
Features/Benefits
• Rubber actuator
• Silver contact material
• J or G terminals
• Compatible with pick and place
Typical Applications
• Front panel
• Car dashboards
• Telephone set
• Instrumentation
machines
Tactile Switches
B
• IP40 sealed
• RoHS compliant and compatible
Specification
Electrical
FUNCTION: Momentary
CONTACT ARRANGEMENT: 1 make contact = SPST N.O.
TERMINALS: J BEND OR GULLWING TYPE FOR SMT
SWITCHING POWER MAX.: 1.0 VA
0.2 VA
MAXIMUM POWER: 1.0 VA
0.2 VA
MAXIMUM VOLTAGE: 32 VDC
32 VDC
MINIMUM VOLTAGE: 20 MV
20 MV
MAXIMUM CURRENT: 50 MA
10 MA
MINIMUM CURRENT: 1 MA
1 MA
DIELECTRIC STRENGTH: ≥ 250 Vrms
CONTACT RESISTANCE: < 100mΩ
INSULATION RESISTANCE: Initial measurement: ≥ 1GΩ
After damp heat: ≥ 10MΩ
BOUNCE TIME: < 5 ms
Mechanical
MAXIMUM APPLIED FORCE: 4 KG (4078GF)*
* VALID ONE TIME. MAXIMUM ALLOWED TRAVEL TO AVOID
OVERLOAD ISSUES
IS 1.75MM
Operating
force Fa N
(grams)±30%
Operating life
(operations)
Travel to make
KST221G / J
1,6-3,2
100,000
1,3+0,3/-0.2
KST241G / J
2,45-4,55
100,000
1,3+0,3/-0.2
Type
Environmental
OPERATING TEMPERATURE: -40°C to +85°C (Silver)
-40°C to +125°C (Gold)
STORAGE TEMPERATURE: -40°C to +85°C (Silver)
-40°C to +125°C (Gold)
Packaging
Process
Switches are delivered on continuous tape and reels of 1,000
pieces, 330 (12.992) external diameter. Other dimensions
according to IEC 60286-3.
Compatible with the lead free reflow soldering
process.
This data sheet does not provide enough information for applications which require a
certain level of quality or safety such as automotive, medical systems, safety equipment.
Please contact your sales representative to get contractual specification package.
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.
K
S
Actuator
2 Soft, 5 mm
T
2
LFS ROHS compliant and compatible. Silver plated.
LFG ROHS compliant and compatible. Gold plated.
Actuation Force
2 2 N (200 grams)
4 3.5 N (350 grams)
Termination
J J bend
G Gullwing
Contact Material
1 Silver
3 Gold
Dimensions are shown: mm
Specifications and dimensions subject to change
14 nov 17
B–66
www.ckswitches.com
KST Series
Long Travel Tact Switch for SMT
J
G
J BEND
GULLWING
2,8
0,1+0,2
0
0,1+0,2
0
2,6±0,15
2,6±0,15
5
5
( 1,73 )
( 1,73 )
2,8
12 mini
2,8
4
4
0,7+0,05
-0,02
1
1
8,6 mini
2,8
5,8 maxi
2,6±0,15
5
4±0,1
( 1,73 )
6,2+0,3
0
0,7+0,05
-0,02
6,2+0,3
0
5
4±0,1
( 1,73 )
3 maxi
6,2+0,3
0
0,1+0,2
0
6,2+0,3
0
,8+0,2
-0,1
12 mini
4
4
0,7+0,05
-0,02
1
1
8,6 mini
5,8 maxi
4±0,1
0,7+0,05
-0,02
6,2+0,3
0
3 maxi
TAPE & REEL
6,2+0,3
0
FOR J AND G TERMINATION
,2+0,3
0
Direction of feed
14 nov 17
Dimensions are shown: mm
Specifications and dimensions subject to change
B–67
www.ckswitches.com
Tactile Switches
6,8+0,2
-0,1