KSC Series
Sealed Tact Switch for SMT
Features/Benefits
Typical Applications
•
•
•
•
Positive tactile feeling
J or G terminations
Tape & reel
•
•
•
•
Automotive
Cellular phones
Industrial electronics
IP 67
Network infrastructure and IT
Specification
FUNCTION: Momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: J bend & Gullwing type for SMT
Electrical
MAXIMUM POWER:
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT:
MINIMUM CURRENT:
Silver
Gold
B
1 VA
32 VDC
20 mV
50 mA
1 mA*
0.2 VA
32 VDC
20 mV
10 mA
1 mA
Mechanical
Operating
force FA
(Newtons)
Min/Max
1.2 / 2.5
2.25 / 3.75
4.1 / 6.9
0.9 / 2.0
1.5 / 2.5
1.5 / 2.5
2.6 / 4.4
4.1 / 7.0
1.6 / 2.4
2.25 / 3.75
4.0 / 6.0
0.82 / 1.38
1.05 / 1.75
1.25 / 2.12
1.25 / 2.12
3.0 / 5.0
Operating
life
(operations)
DIELECTRIC STRENGTH (50 Hz, 1 min.): 250 V
CONTACT RESISTANCE: < 100 mΩ
INSULATION RESISTANCE (100 V): > 109 Ω
BOUNCE TIME: < 1 ms
* Ultra low current with 1µA version are available upon request for
KSC2 and KSC4
Type
Travel
(mm)
KSC121J
KSC141J
KSC151J
KSC201J
KSC221J
KSC222J
KSC241J
KSC251J
KSC321J
KSC341J
KSC351J
KSC401J 50SH
KSC411J 70SH
KSC421J 70SH
KSC422J 70SH
KSC441J 70SH
KSC442J 70SH
KSC621J
200,000
200,000
100,000
300,000
500,000
1,000,000
300,000
300,000
300,000
300,000
100,000
5,000,000
1,000,000
300,000
1,000,000
300,000
1,000,000
300,000
300,000
300,000
300,000
300,000
0.3 0.15
0.3 0.15
0.35 0.15
0.3 +0.2 /-0.15
0.35 +0.3 /-0.1
0.35 +0.3 /-0.1
0.5 0.2
Environmental
Silver
Gold
OPERATING TEMPERATURE:
STORAGE TEMPERATURE:
-40˚C to 85˚C -40˚C to 125˚C
-55˚C to 85˚C -55˚C to 125˚C
0.5 0.2
0.2 +0.3 /0
0.2 +0.3 /0
0.25 +0.3 /0
0.3 0.15
0.35 0.20
0.5 0.25
0.5 0.25
0.75 0.25
0.75 0.25
0.5 0.2
Process
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.
– Infrared Reflow Soldering in accordance with IEC 61760-1.
3.0 / 5.0
1.0 / 1.65
2.25 / 3.75
1.7 / 2.8
2.9 / 4.9
2.4 / 3.9
KSC641J
KSC721 J
KSC741J
KSC821JLFS
0.5 0.2
Packaging
0.3 0.15
0.4 0.20
0.65 0.2
KSC1, KSC2 and KSC3 are delivered on continuous tape and reels of
2,000 pieces, KSC4 in reels of 1,000 pieces. KSC 6 in reels of 750
pieces. KSC7 in reels of 1,000 pieces. Dimensions of reels according
to EIA RS481 or IEC 60286-3. External diameter 330 mm 2 mm.
A detect switch version is available KSC4D1J and KSC4D1G.
Please see Detect chapter.
For other versions, please refer to KSC5, KSC9, KSC4V and
KSC-ST datasheets.
NOTE: Specifications listed above are for switches with standard options.
Other versions in terms of force, termination length and corrosion protection available.
Please contact your sales representative.
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.
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.
For any part number different from those listed above, please consult your local representative.
K
S
C
S
H
Actuator
LFS Lead free compatible, silver plated.
LFG Lead free compatible, gold plated.
1 Without, H=2,5 mm
2 Soft, H=3,5 mm
3 Hard, H=3,5 mm
4 Soft, H=5,2 mm
6 Hard, H=7,7 mm
7 Soft, H=4,3 mm****
8 Hard, H=4,9 mm
Operating Force
0 1.2 N (120 grams)
1 1.4 N (140 grams)
2 1.6 N / 1.7 N *
(160/170 grams)
4 3 N / 4 N *
(300/400 grams)
5 5.5 N (550 grams)
6 4.5 N / 8.0
Rubber Hardness Indication*****
50 Shore**
70 Shore***
Termination
J J bend
G Gull wing
*
See Mechanical chart above to confirm specifications
** Applies to KSC401J50SH only
*** Applies to KSC 411J70SH, KSC421J70SH,KSC441J70SH
**** KSC7 offered with blue actuator as standard
***** Other actuator materials are available, please refer to
KSC-ST datasheet
Contact Material
Operating life
1 Silver
2 Silver long life
3 Gold
4 Gold long life
Dimensions are shown: mm (inches)
Specifications and dimensions subject to change
(450/800 grams)
23 july 12
www.ck-components.com
B–23
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