LFS Lead free compatible, silver plated.
LFG Lead free compatible, gold plated.
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.ck-components.com
B–21
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
KSC Series
Sealed Tact Switch for SMT
How T
o Or
der
Our easy build-a-switch concept allows you to mix and match options to cr
eate the switch you need. T
o or
der, select
desir
ed option fr
om each category and place it in the appr
opriate box.
For any part number dif
fer
ent fr
om those listed above, please consult your local represenative.
Features/Benefits
• Positive tactile feeling
• Range of 6 actuation forces
• 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
, page F–7.
KSC vertical series have an IP40 sealing level.
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
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 grams)/(170 grams)
4 3 N / 4 N *
(300 grams)/(400 grams)
5 5.5 N (550 grams)
Contact Material
Operating life
1 Silver
2 Silver long life
3 Gold
4 Gold long life
Termination
J J bend
G Gull wing
V Right angle
(available in KSC421V and
KSC621V versions only)
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 4.3 / 7.3 100 000 0.3 ± 0.15
KSC201J 0.9 / 2N 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 4.1 / 6.9 100 000 0.25 +0.3 /0
KSC401J 50SH 0.9 / 2.0 300 000 0.5 ± 0.25
KSC411J 70SH 1.05 / 1.75 300 000 0.35 ± 0.15
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
KSC421V 1.3 / 2.1 300 000 0.375 ± 0.225
KSC621V 1.1 / 1.9 100 00 0.5 ± 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
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. KSCV in boxes of 500 pieces. Dimensions of reels according
to EIA RS481 or IEC 2863. External diameter 330 mm ± 2 mm.
NOTE: Specifications listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
* See Mechanical chart above to confirm specifications.
** Applies to KSC401J50SH only.
*** Applies to KSC 411J70SH, KSC421J70SH,
KSC441J70SH
S H
Rubber Hardness Indication
50
Shore**
70 Shore***
