KSC Series
Sealed Tact Switch for SMT
Features/Benefits
• Positive tactile feeling
• J or G terminations
• Various heights
• IP67
Typical Applications
• Automotive
• Medical instruments
• Industrial electronics
• Network infrastructure and IT
• Elevator
Electrical
FUNCTION: Momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: J bend & Gullwing type for SMT
SEALING: IP67 except KSC5 (IP50)
MAXIMUM POWER:
1 VA
MAXIMUM VOLTAGE: 32 VDC
MINIMUM VOLTAGE: 20 mV
MAXIMUM CURRENT: 50 mA
MINIMUM CURRENT: 1 mA*
Liability Limitation
Silver
OPERATING TEMPERATURE: -40˚C to 85˚C
STORAGE TEMPERATURE: -55˚C to 85˚C
Gold
0.2 VA
32 VDC
20 mV
10 mA
0.1 mA
DIELECTRIC STRENGTH (50 Hz, 1 min.): ≥ 250 Vrms
CONTACT RESISTANCE: ≤ 100mΩ
INSULATION RESISTANCE (100 V): ≥ 10M Ω
BOUNCE TIME: ≤ 1 ms
This datasheet does not provide enough information for
applications that require a certain level of quality or safety
such as automotive, medical systems, or safety equipement.
Please contact customer service for the contractual
specification package.
Environmental
Silver
* Ultra low current with 10 µA - 1 VDC version are available upon request for
KSC2 and KSC4
Gold
-40˚C to 125˚C
-55˚C to 125˚C
Packaging
Tape and Reel (see series for quantity information)
Process
NOTE: Specifications listed above are for switches with standard options.
SOLDERING: Depending on the application, this component is
suited to the following methods:
– Terminals being silver or gold plated over a nickel barrier, the
use of slightly activated flux is suitable.
– Soldering on double wave machine for vertical versions:
soldering time ≤ 5 sec.
– Cleaning according to typical washing processes.
– Lead free reflow soldering process in accordance with IEC
61760-1.
KSC Product Range
KSC1
KSC2
KSC3
KSC4
KSC5
KSC6
KSC7
KSC8
KSC9
KSC10
Without
actuator
Soft
actuator
Hard
actuator
Soft
actuator
Hard
actuator
Hard
actuator
Soft
actuator
Hard
actuator
Hard
actuator
Soft
actuator
H = 2.5 mm
H = 3.5 mm
H = 4.3 mm
H = 4.9 mm
H = 7.7 mm
compatible with button
H = 4.9 mm
IP67
IP67
IP67
IP67
IP67
IP67
H = 3.5 mm H = 5.2 mm H = 5.6 mm H = 7.7 mm
IP67
IP67
IP50
IP67
Note: KSC Series is subject to variants. Please contact customer service for other options.
Dimensions are shown: mm
Specifications and dimensions subject to change
B–57
www.ckswitches.com
B
Tactile Switches
Specification
KSC Series
Sealed Tact Switch for SMT
2,9 max
4
0,7±0,05
4
( 7,6 )
10
0,7±0,05
+0,2
0,1 0
GULLWING
3,3 mini
6,8
B
Tactile Switches
G
2,9 max
J BEND
+0,2
0,1 0
J
PAD LAYOUT
3 maxi
4
4
1
1
PAD LAYOUT
5,8 maxi
8,6 mini
12 mini
12 MM
12
330
mm
16 MM
330
12 mm
Pieces
KSC1J
2,000
KSC2J
2,000
KSC3J
2,000
16
16 mm
KSC1G
KSC2G
KSC3G
KSC4J & G
KSC5J & G
KSC6J & G
KSC7J & G
KSC8J & G
KSC9J & G
KSC10J & G
mm
Pieces
2,000
2,000
2,000
1,000
1,000
750
1,000
1,000
750
1,000
Dimensions are shown: mm
Specifications and dimensions subject to change
B–58
www.ckswitches.com
KSC4 Series
Sealed Tact Switch for SMT
KSC4 soft actuator 5,2 mm high
Operating Operating
life
force FA
(Newtons) (operations)
1.45 ± 0.55
1.4 ± 0.35
1.7 ± 0.45
1.7 ± 0.45
4 ± 1
4 ± 1
4.25 ± 0.75
3.5 ± 0.9
3.4 ± 1
3.4 ± 1
6.25 ± 1.75
6.25 ± 1.75
5,000,000
1,000,000
300,000
1,000,000
300,000
1,000,000
300,000
300,000
300,000
300,000
100,000
300,000
Travel
(mm)
+0,2 2,9 max
0,1 0
Type
KSC401 50SH
KSC411 70SH
KSC421 70SH
KSC422 70SH
KSC441 70SH
KSC442 70SH
KSC451 70SH
KSC441 SPD
KSC441 ST1
KSC441 ST2
KSC461 ST1
KSC461 ST2
0.5 ± 0.25
0.35 ± 0.20
0.5 ± 0.25
0.5 ± 0.25
0.75 ± 0.25
0.75 ± 0.25
0.8 ± 0.2
0.7 ± 0.2
0.7 ± 0.25
0.35 ± 0.20
1 ± 0.3
0.5 ± 0.2
+0,3
6,2 0
+0,3
6,2 0
Tactile Switches
B
5,2
ø 2,7
Packaging
Switches delivered on continuous tape & reels of 1,000 pieces
Dimensions according to EIA RS-481/ IEC 60286-3 standard
External diameter 330 ± 2 mm
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
C
4
Operating Force
0 1.45 N (145 grams)
1 1.4N (140 grams)
2 1.7 N (170 grams)
4 4 N (400 grams)
5 4.25 N (425 grams)
6 6.25 N (625 grams)
See mechanical chart above
to confirm specifications
Contact Material
1 Silver
2 Silver long life
3 Gold
4 Gold long life
LFS Lead free compatible, silver plated
LFG Lead free compatible, gold plated
Termination
J J bend
G Gullwing
50SH 50 shore **
70SH 70 shore ***
SPD Special delta version
ST1 High click
ST2 Low click
** applies to KSC401J/G50SH only
*** applies to KSC411J/G70SH, KSC421J/G70SH and KSC441J/G70SH
Dimensions are shown: mm
Specifications and dimensions subject to change
6 may 19
B–64
www.ckswitches.com