B–23
Dimensions are shown: mm (inches)
Specifications and dimensions subject to change
www.ck-components.com
Tactile Switches
B
23 july 12
LFS Lead free compatible, silver plated.
LFG Lead free compatible, gold plated.
KSC Series
Sealed Tact Switch for SMT
How T
o 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.
Features/Benefits
•
Positive tactile feeling
•
J or G terminations
•
Tape & reel
•
IP 67
Mechanical
Specification
FUNCTION: Momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: J bend & Gullwing type for SMT
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.
Actuator
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
K S C
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
(450/800 grams)
Contact Material
Operating life
1
Silver
2 Silver long life
3 Gold
4 Gold long life
T
ermination
J
J bend
G Gull wing
Operating Operating
Type force FA life Travel
(Newtons) (operations) (mm)
Min/Max
KSC121J 1.2 / 2.5 200,000 0.3 ± 0.15
KSC141J 2.25 / 3.75 200,000 0.3 ± 0.15
KSC151J 4.1 / 6.9 100,000 0.35 ± 0.15
KSC201J 0.9 / 2.0 300,000 0.3 +0.2 /-0.15
KSC221J 1.5 / 2.5 500,000 0.35 +0.3 /-0.1
KSC222J 1.5 / 2.5 1,000,000 0.35 +0.3 /-0.1
KSC241J 2.6 / 4.4 300,000 0.5 ± 0.2
KSC251J 4.1 / 7.0 300,000 0.5 ± 0.2
KSC321J 1.6 / 2.4 300,000 0.2 +0.3 /0
KSC341J 2.25 / 3.75 300,000 0.2 +0.3 /0
KSC351J 4.0 / 6.0 100,000 0.25 +0.3 /0
KSC401J 50SH 0.82 / 1.38 5,000,000 0.3 ± 0.15
KSC411J 70SH 1.05 / 1.75 1,000,000 0.35 ± 0.20
KSC421J 70SH 1.25 / 2.12 300,000 0.5 ± 0.25
KSC422J 70SH 1.25 / 2.12 1,000,000 0.5 ± 0.25
KSC441J 70SH 3.0 / 5.0 300,000 0.75 ± 0.25
KSC442J 70SH 3.0 / 5.0 1,000,000 0.75 ± 0.25
KSC621J 1.0 / 1.65 300,000 0.5 ± 0.2
KSC641J 2.25 / 3.75 300,000 0.5 ± 0.2
KSC721 J 1.7 / 2.8 300,000 0.3 ± 0.15
KSC741J 2.9 / 4.9 300,000 0.4 ± 0.20
KSC821JLFS 2.4 / 3.9 300,000 0.65 ± 0.2
Typical Applications
•
Automotive
•
Cellular phones
•
Industrial electronics
•
Network infrastructure and IT
Electrical
Silver Gold
MAXIMUM POWER: 1 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 (50 Hz, 1 min.): 250 V
CONTACT RESISTANCE: < 100 mΩ
INSULATION RESISTANCE (100 V): > 10
9
Ω
BOUNCE TIME: < 1 ms
* Ultra low curr
ent with 1
µA version ar
e available upon request for
KSC2 and KSC4
Environmental
Silver Gold
OPERATING TEMPERATURE: -40˚C to 85˚C -40˚C to 125˚C
STORAGE TEMPERATURE: -55˚C to 85˚C -55˚C to 125˚C
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.
Packaging
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.
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 r
epr
esentative.
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.
* 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 ar
e available, please r
efer to
KSC-ST datasheet
S H
Rubber Har
dness Indication*****
50
Shore**
70 Shore***
