LFS Lead free compatible, silver plated.
LFG Lead free compatible, gold plated.
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B–23
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
KSC Series
Sealed 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 place it in the appropriate box.
For any part number different from 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
1Without, H=2,5 mm
2Soft, H=3,5 mm
3Hard, H=3,5 mm
4Soft, H=5,2 mm
6Hard, H=7,7 mm
7Soft, H=4,3 mm
K S C
Operating Force
01.2 N (120 grams)
11.4 N (140 grams)
21.6 N / 1.7 N *
(160 grams)/(170 grams)
43 N / 4 N *
(300 grams)/(400 grams)
55.5 N (550 grams)
64.5 N / 8.0
(450 grams)/(800 grams)
Contact Material
Operating life
1Silver
2Silver long life
3Gold
4Gold long life
Termination
JJ bend
GGull wing
VRight 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 / 1.9 100,000 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
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): > 109 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. KSC7 in reels of 1,000 pieces. KSCV in boxes of 500 pieces.
Dimensions of reels according to EIA RS481 or IEC 2863. Exter nal
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***
www.ck-components.com
B–24
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
6,2
(.244)
6,2
(.244)
0,7
(.028)
2,5
(.098)
0,1
(.004)
ø3,28
(.129)
6,8
(.268)
2,6
(.102)
40,1
(.157)
1
2
5,2
(.205)
ø2,6
(.102)
1
0
3,47
(.137)
ø2,8
(.110)
..
1,6
(.063)
7,7
(.303)
ø4,7
(.185)
ø3,0
(.118)
ACTUATOR
KSC4 SOFT, 5,2 mm HIGH
KSC6 HARD, 7,7 mm HIGH
KSC1 WITHOUT, 2.5 mm HIGH
KSC Series
Sealed Tact Switch for SMT
KSC2 SOFT, 3,5 mm HIGH KSC3 HARD, 3,5 mm HIGH
2,9
(.114)
3,5
(.138)
1
0
KSC4 KSC421V ONLY
NOTE: KSC4 standard silicone
material is 70 shore, the only
exception is KSC401J which is
50 shore.
KSC6 KSC621V ONLY
7,4
6,25±0,25
4,52
5,8
2,1 3,4 3,15
(.083) (.134) (.124)
7,4
2
maxi6,9
(.291)
(.246±,010)
(.178)
(.228)
(.291)
(.079)
(.271)
NOTE: KSC421V requires metalized holds for simultaneous reflow soldering of switch
terminals and bracket terminals.
NOTE: KSC621V requires metalized holds for simultaneous reflow soldering of switch
terminals and bracket terminals.
ø3
+0,05
0
maxi0,3
1,5 6,47
5,1
ø 4,7±0,1
1,6±0,1
2,5 ±0,15
7,6 ±0,25
(.200)
(.255)(.059)
(.063±.004)
(.098±.006)
(.299±.010)
(.012)
(.185±.004)
(.118 0)
+.010
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
www.ck-components.com
B–25
Tactile Switches
B
OPERATING FORCE
OPTION
CODE OPERATING FORCE
01.2 N (120 grams)
11.4 N (140 grams)
21.6 N / 1.7 N (160/170 grams)
43 N / 3.5 N (300/350 grams)
55.5 N (550 grams)
KSC Series
Sealed Tact Switch for SMT
CONTACT MATERIAL
OPTION
CODE MATERIAL
1SILVER
3GOLD
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
KSC7 SOFT, 4,3 mm HIGH
0,7
±
0,05
ø 2,7±0,1
6,2
+0,3
0
2,5
±
0,15
0,1
+0,2
0
6,2
+0,3
0
6,8
±
0,3
4,3±0,3
3,5
±
0,2
4
±
0,2
www.ck-components.com
B–26
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
KSC Series
Sealed Tact Switch for SMT
TERMINATION
JJ BEND GGULLWING
0,7
(.028)
2,5
(.098)
0,1
(.004)
6,8
(.268)
2,6
(.102)
4,00,1
(.157.004)
4,0
(.157)
1,0
(.039)
3,0 max.
(.118)
8,6 min.
(.339)
PAD LAYOUT
4,0
(.157)
1,0
(.039)
5,8 max.
(.228)
12,0 min.
(.472)
PAD LAYOUT
VRIGHT ANGLE - KSC421V ONLY
5,65
±0,05
1,38
1,95
0,35
0,60,6
3,3 3,3
1,381,38
0,8
1,26
(x2)
1,2
1,39
0,34
LAYOUT
Metallized
holes
1
2
ø
(.013)
(.054)
(.076)
(.014)
(.054)(.054)
(.023) (.023)
(.130) (.130)
(.031)
(.055)
(.049)
(.047)
(.222±.010)
VRIGHT ANGLE - KSC621V ONLY
PAD LAYOUT
12
ø3
+0,05
0
4,52
5,8
maxi0,3
1,5 6,47
5,1
ø 4,7±0,1
1,6±0,1
2,5±0,15
7,6±0,25
7,4
2
maxi6,9
2,1 3,4 3,15
(.083) (.134) (.124)
7,4
6,25±0,25
(.291)
(.246±,010)
(.079)
(.271)
(.178)
(.228)
(.291)
(.063±.004)
(.098±.006)
(.299±.010)
(.185±.004)
(.118 0)
+.010
(.200)
(.255)
(.059)
(.012)
www.ck-components.com
B–27
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
KSC Series
Sealed Tact Switch for SMT
0,3±0,05
(.012±.002)
4,0+0,2/-0,0
(.157+.008/-.000)
1,75
(.069)
8,0
(.315)
2±0,05
(.079±.002)
20,05
(.079.002)
ø1,5+0,2/-0,0
(.059+.008/-.000)
ø1,5+0,1/-0,0
(.059+.004/-.000)
6,6+0,2/-0,0
(.260+.008/-.000)
10,4+0,2/-0,0
(.409+.008/-.000)
2˚0' max.
16±0,3
(.630±.020)
7,5
(.295)
0,25±0,05
(.010±.002)
3,15+0,2/-0,0
(.124+.008/-.000)
1,75
(.069)
8,0
(.315)
2,0±0,05
(.079±.002)
2,00,05
(.079.002)
ø1,5+0,2/-0,0
(.059+.008/-.000)
ø1,5+0,1/-0,0
(.059+.004/-.000)
6,6+0,2/-0,0
(.260+.008/-.000)
7,2+0,2/-0,0
(.283+.008/-.000)
2˚0' max.
12,00,3
(.472.012)
5,5
(.217)
0,3±0,05
(.012±.002)
3,2+0,2/-0,0
(.126+.008/-.000)
1,75
(.069)
8,0
(.315)
2,0±0,05
(.079±.002)
2,0±0,05
(.079±.002)
ø1,5+0,2/-0,0
(.059+.008/-.000)
ø1,5+0,1/-0,0
(.059+.004/-.000)
6,6+0,2/-0,0
(.260+.008/-.000)
10,4+0,2/-0,0
(.409+.008/-.000)
2˚0' max.
16,0±0,3
(.630±.012)
7,5
(.295)
FOR KSC1 J TERMINATION
0,250,05
(.010.002)
3,95+0,2/-0,0
(.156+.008/-.000)
1,75
(.069)
8,0
(.315)
20,05
(.079.002)
20,05
(.079.002)
ø1,5+0,2/-0,0
(.059+.008/-.000)
ø1,5+0,1/-0,0
(.059+.004/-.000)
6,6+0,2/-0,0
(.260+.008/-.000)
7,2+0,2/-0,0
(.283+.008/-.000)
2˚0' max.
120,2
(.472.008)
5,50,05
(.217.002)
FOR KSC2 & KSC3 G TERMINATION
FOR KSC1 G TERMINATION
FOR KSC2 & KSC3 J TERMINATION
DIRECTION OF FEED
DIRECTION OF FEED
DIRECTION OF FEED
DIRECTION OF FEED
TAPE & REEL
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B–28
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
KSC Series
Sealed Tact Switch for SMT
FOR KSC4 FOR G TERMINATION
B
B
5,6
(.220)
6,7±0,1
(.264±.004)
10,50,1
(.413.004)
1,0
(.039)
7,5
(.295)
1,75
(.069)
12±0,1
(.472±.004)
2±0,05
(.079±.002)
4±0,1
(.157±.004)
16±0,3
(.630±.012)
ø1,5+0,1/-0,0
(.059+.004/-.000)
ø1,5+0,2/-0,0
(.059+.008/-.000)
0,4±0,03
(.016±.001)
2˚0'
R 1,15
(.045)
2,05
(.081)
0,15±0,02
(.006±.001)
2±0,05
(.079±.002)
FOR KSC4 FOR J TERMINATION
B
B
5,6
(.220)
6,7±0,1
(.264±.004)
7,3±0,1
(.287±.004)
1,0
(.039)
7,5
(.295)
1,75
(.069)
12±0,1
(.472±.004)
2±0,05
(.079±.002)
4±0,1
(.157±.004)
16±0,3
(.630±.012)
ø1,5+0,1/-0,0
(.059+.004/-.000)
ø1,5+0,2/-0,0
(.059+.008/-.000)
0,4±0,03
(.016±.001)
2˚0'
R 1,15
(.045)
2,05
(.081)
0,15±0,02
(.006±.001)
2±0,05
(.079±.002)
B
B
AA
160,3
(.630.012)
12,0
(.472)
6,4
(.252)
10,5+0,2/-0,0
(.413+.008/-.000)
3,0
(.118)
6,6
(.260)
4,0
(.157)
7,5
(.295)
ø1,5+0,1/-0,0
(.059+.004/-.000)
ø2+0,1/-0,0
(.079+.004/-.000)
1,75
(.069)
20,05
(.079.002)
7,7+0,1/-0,0
(.303.004/-.000)
2,5
(.098)
1,7
(.067)
15˚
0,40,03
(.016.001)
4˚
15˚
0,1
20,05
(.079.002)
FOR KSC6 G & J TERMINATION
Direction of feed
Direction of feed
Direction of feed
TAPE & REEL
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B–29
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
Tactile Switches
B
KSC Series
Sealed Tact Switch for SMT
TAPE & REEL
FOR KSC7 FOR J TERMINATION
B
B
5,6
(.220)
6,7±0,1
(.264±.004)
7,3±0,1
(.287±.004)
1,0
(.039)
7,5
(.295)
1,75
(.069)
12±0,1
(.472±.004)
2±0,05
(.079±.002)
4±0,1
(.157±.004)
16±0,3
(.630±.012)
ø1,5+0,1/-0,0
(.059+.004/-.000)
ø1,5+0,2/-0,0
(.059+.008/-.000)
0,4±0,03
(.016±.001)
2˚0'
R 1,15
(.045)
2,05
(.081)
0,15±0,02
(.006±.001)
2±0,05
(.079±.002)