248
TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
Combination of excellent solder strength & size merit
(3.5×3.55mm with height of 1.25mm)
1.25mm Height Low-profile Side Push （Surface Mount Type）
SKSC
Guide bosses
Without
With
Guide bosses
Without
With
Japan Export
Japan Export
Operating force Operating life
（5mA 5V DC）
1. 6 N
2.2N
1. 6 N
2.2N
Side push 100,000 cycles
Product No.
SKSCLCE010
SKSCLAE010
SKSCLDE010
SKSCLBE010
Operating direction
■Product Line
Side push type
Operatingforce Operating life
（5mA 5V DC）
1. 6 N
2.2N
1. 6 N
2.2N
Side push 100,000 cycles
Product No.
SKSCPCE010
SKSCPAE010
SKSCPDE010
SKSCPBE010
Operating direction
With ground terminal type
■Packing Specifications
Taping
Reel size
Unit:mm
5,000 5,000
Minimum order unit （pcs.）
5,000 5,000
Minimum order unit （pcs.）
■Typical Specifications
Items Specifications
Rating （max.）
50mA 12V DC
Rating （min.）
10μA 1V DC
Initial contact resistance
100mΩ max.
Travel （mm）
0.2
Refer to P.265 for soldering conditions.
Number of packages （pcs.） Tape width
（mm）
Export package
measurements （mm）
1 reel 1 case / Japan
1 case / export packing
5,000 50,000 50,000 12 395×395×205
For reels of 330mm diameter, please inquire.
Note
249
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TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
■Dimensions Unit:mm
PC board mounting hole and land dimensions
（Viewed from switch mounting face）
Style
■Circuit Diagram
34
12
0.4
2.2
5
2.2
0.4
0.6
1.8
2-ø0.8 Hole
2
Ground terminal land
FNosoldershallbe
applied.
Parts indicated by ※ apply only to products with a ground terminal.
Ground terminal land pattern is applicable to
ground terminal type only.
SKSC／1.25mm Height Low-profile Side Push （Surface Mount Type）
ø0.6
1.8
Push Position
1.1
1.25
0.5
0.7
2
1
4
3
1.6
3.5
3.85
3.55
0.7
1.3
4.85
2.9
2.1
（※）
193
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TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
Type Sharp Feeling Type
Surface Mount
Series
SKHU SKTD SKSN SKTG SKSL SKSC SKRT SKRH
Photo
Features
—Low–profile Mid-mount Half-mount Low–profile —
4–direction
switch
＋push switch
Water-proof
○●—●————
Dust-proof
○●—●————
IP standard
—
67 equivalency
—
67 equivalency
————
Operating
direction
Top push
●——————●
Side push
—●●●●●●●
Dimensions
（mm）
W
6.2 3.9 6.2 5.2 4.5 3.5 4.5 7. 3 5
D
6.3 2.9 33.5 2.6 3.55 3.4 7. 5
H
2 . 5 / 3 .1 1. 5 5 3.5 1. 5 5 2.2 1. 2 5 3.3 5
Operation
force
coverage
1N max.
See the relevant
pages for
respective
product
description
1N to 2N
2N to 3N
3N to 4N
4N to 5N
Travel （mm）
0.25 0 .15 0.2 0 .15 0.2
See the relevant pages for
respective product
description
Ground terminal
●●●●●○● ●
Operating temperature range
−40℃ to ＋85℃ −
30℃ to ＋85℃
−
40℃ to ＋85℃
−30℃ to ＋85℃
−
40℃ to ＋90℃
−
40℃ to ＋85℃
Automotive use
○——— ————
Life Cycle
Electrical
performance
Rating （max.）
（Resistive load）
5 0 m A 12 V D C
Rating （min.）
（Resistive load）
10μA 1V D C
Insulation resistance
10 0 MΩ mi n . 10 0 V D C 1m i n .
Voltage proof
250V AC 1min. 10 0 V A C 1m i n .
250V AC 1min. 10 0 V A C 1m i n .
250V AC 1min.
10 0 V A C
1m i n .
Durability
Vibration
10 to 55 to 10Hz/min., the amplitude is 1.5mm for all the frequencies,
in the 3 direction of X, Y and Z for 2 hours respectively
Lifetime
Shall be in accordance with individual specifications.
Environmental
performance
Cold
−40℃ 96h
Dry heat
90℃ 96h 85℃ 96h 90℃ 96h 85℃ 96h 90℃ 96h
Damp heat
60℃, 90 to 95%RH 96h
Page
242 244 245 246 247 248 250 465
TACT SwitchTM Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 265
TACT SwitchTM Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 266
Notes
1. The automotive operating temperature range to be individually discussed upon request.
2. ● Indicates applicability to all products in the series, while ○ indicates applicability to some products in the series.
W：Width. The most outer dimension excluding terminal portion.
D ：Depth. The most outer dimension excluding terminal portion.
H ：Height. The minimum dimension if there are variances.
265
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TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
TACT SwitchTM Soldering Conditions
1. Temperature measurement: Thermocouple φ 0.1 to 0.2 CA （K） or CC （T） at solder joints
　 （copper foil surface）.
A heat resistive tape should be used to fix thermocouple.
2. Temperature profile
■Condition for Reflow
Available for Surface Mount Type.
180
150
260˚C max. 3 sec max.
230˚C
Time
120 sec max.
（pre-heating）
3 to 4min.
Time inside soldering equipment
Temperature (˚C )
40s max.
1. Prevent flux penetration from the top side of the TACT SwitchTM.
2. Switch terminals and a PC board should not be coated with flux prior to soldering.
3. The second soldering should be done after the switch is stable with normal temperature.
4. Use the flux with a specific gravity of min 0.81.
（EC-19S-8 by TAMURA Corporation, or equivalents.）
Notes
1. The above temperature shall be measured of the top of switch. There are cases where the PC board's temperature greatly
differs from that of the switch, depending on the material, size, thickness of PC boards and others.
　 The above-stated conditions shall also apply to switch surface temperatures.
2. Soldering conditions differ depending on reflow soldering machines.
Prior verification of soldering condition is highly recommended.
Notes
■Conditions for Auto-dip
Available for Snap-in Type and Radial Type.
Items Condition
Flux built-up
Mounting surface should not be exposed to flux
Preheating temperature
Ambient temperature of the soldered surface of PC board. 100℃ max.
Preheating time
60s　max.
Soldering temperature
260℃ max.
Duration of immersion
5s max.
Number of soldering
2times max.
SKHH, SKPD Series
Items Condition
Flux built-up
Mounting surface should not be exposed to flux
Preheating temperature
Ambient temperature of the soldered surface of PC board. 110℃ max.
Preheating time
60s　max.
Soldering temperature
260℃ max.
Duration of immersion
5s max.
Number of soldering
2times max.
SKQJ, SKQK, SKEG Series
Items Condition
Flux built-up
Mounting surface should not be exposed to flux
Preheating temperature
Ambient temperature of the soldered surface of PC board. 100℃ max.
Preheating time
45s　max.
Soldering temperature
255℃ max.
Duration of immersion
5s max.
Number of soldering
2times max.
■Manual Soldering
Items Condition
Soldering temperature
350℃ max.
Duration of soldering
3s max.
Capacity of soldering iron
60W max.
SKHH, SKHW, SKRG, SKPD Series
Items Condition
Soldering temperature
360℃ max.
Duration of soldering
3s max.
Capacity of soldering iron
60W max.
SKTD, SKTG, SKQJ, SKQK, SKEG Series
Items Condition
Soldering temperature
350℃ max.
Duration of soldering
3s max.
Capacity of soldering iron
20W max.