Dimensions are shown: mm (inches)
Specifications and dimensions subject to change
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KST Series
Long Travel Tact Switch for SMT
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 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.
Packaging
Switches are delivered on continuous tape and reels of 1,000 pieces,
330 (12.992) external diameter. Other dimensions according to
IEC 60286-3.
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.
Specification
FUNCTION: Momentary
CONTACT ARRANGEMENT: 1 make contact = SPST N.O.
TERMINALS: J Bend or Gullwing type for SMT
Mechanical
MAXIMUM APPLIED FORCE: 4 kg (4078gf)*
* Valid one time. Maximum allowed travel to avoid overload issues
is 1.75mm
Electrical Silver Gold
SWITCHING POWER MAX.: 1.0 VA 0.50 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: < 100m
Ω
INSULATION RESISTANCE: Initial measurement: ≥ 1GΩ
After damp heat: ≥ 10MΩ
BOUNCE TIME: < 5 ms
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)
Process
Compatible with the 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.
Features/Benefits
• Rubber actuator
• Silver contact material
• J or G terminals
• Compatible with pick and place
machines
• IP 40 sealed
• RoHS compliant and compatible
T
ypical Applications
• Front panel
• Car dashboards
• Telephone set
• Instrumentation
Operating force Operating life Travel to
Type Fa N (grams)±30% (operations) 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
Actuator
2 Soft,
5 mm
Actuation For
ce
2
2 N (200 grams)
4 3.5 N (350 grams)
K S T 2
Contact Material
1
Silver
3 Gold
T
ermination
G
Gull
wing
J J Bend
LFS RoHS compliant and compatible. Silver plated.
LFG RoHS compliant and compatible. Gold plated.
28 oct 15
