KSC Series
Sealed Tact Switch for SMT
Features/Benefits
Typical Applications
• Automotive
• Cellular phones
• Industrial electronics
• Positive tactile feel
• Range of 6 actuation forces
• J or G terminations
• Tape & reel
• Network infrastructure and IT
• IP 67
• RoHS compliant and compatible
B
Specification
Electrical
Silver
Gold
FUNCTION: momentary action
CONTACT ARRANGEMENT: 1 make contact = SPST, N.O.
TERMINALS: J bend & Gullwing type for SMT
MAXIMUM POWER:
1 VA
32 VDC
20 mV
50 mA
1 mA
0.2 VA
32 VDC
20 mV
10 mA
1 mA
MAXIMUM VOLTAGE:
MINIMUM VOLTAGE:
MAXIMUM CURRENT:
MINIMUM CURRENT:
Mechanical
DIELECTRIC STRENGTH (50 Hz, 1 min.): 250 V
CONTACT RESISTANCE: < 100 mΩ
INSULATION RESISTANCE (100 V): > 109 Ω
BOUNCE TIME: < 1 ms
Operating force
FA1) Newtons
(grams)
Operating
life
Type
KSC121J
KSC141J
KSC151J
KSC221J
KSC241J
KSC321J
KSC341J
(operations)
200,000
200,000
100,000
500,000
300,000
500,000
300,000
100,000
5,000,000
1,000,000
Travel
0,3 0,15
0,3 0,15
1.6 (160)
3.0 (300)
5.5 (550)
2.0 (200)
3.5 (350)
1.6 (160)
3.0 (300)
5.5 (550)
1.1 (110)
1.4 (140)
1.7 (170)
3.2 (320)
1.6 (160)
3.0 (300)
1.7 (170)
1.7 (170)
Environmental
Silver
Gold
0,35 0,15
0,35+0,30/-0,10
0,5 0,2
0,20+0,30/-0,0
0,20+0,30/-0,0
0,25+0,30-0,0
0,35 0,15
OPERATING TEMPERATURE:
STORAGE TEMPERATURE:
-40˚C to 85˚C -40˚C to 125˚C
-55˚C to 85˚C -55˚C to 125˚C
Process
KSC351J
SOLDERING: Compatible with the lead free soldering profile.
KSC401J50SH
KSC411J70SH
KSC421J70SH
KSC441J70SH
KSC621J
KSC641J
KSC421V
KSC621V
0,35+0,2/-0,2
1,000,000 0,50+0,25/-0,25
Packaging
300,000
500,000
300,000
1,000,000 0,50+0,25/-0,25
100,000 0,50 0,20
0,75+0,25/-0,25
0,50 0,20
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.
0,50 0,20
1) Tolerances of operating force FA is 25%.
NOTE: Specifications listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
A detect switch version is available KSC4D1J and KSC4D1G.
Please see Detect chapter, page F–7.
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 ITT representative.
K
S
C
S
H
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
LFS RoHS compliant and compatible. Silver plated.
LFG RoHS compliant and compatible. Gold plated.
Operating Force
0 1.2 N (120 grams)
1 1.4 N (140 grams)
2 1.6 N / 1.7 N *
Rubber Hardness Indication
50 Shore**
(160 grams)/(170 grams)
4 3 N / 3.5 N *
(300 grams)/(350 grams)
5 5.5 N (550 grams)
70 Shore***
Contact
Material
1 Silver
Termination
J J bend
G Gull wing
3 Gold
V Right angle
*
See Mechanical chart above to confirm specifications.
(available in KSC421V and KSC621V versions only)
** Applies to KSC401J50SH only.
*** Applies to KSC 411J70SH, KSC421J70SH, KSC441J70SH
Dimensions shown in: mm (inch)
Specifications and dimensions subject to change
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