235
TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
Soldering of the frame realizes higher solder strength
3.9×2.9mm Side Push Type (Surface Mount Type)
SKTD
■Circuit Diagram
■Typical Specifications
Items Specifications
Rating （max.）
50mA 12V DC
Rating （min.）
10μA 1V DC
Initial contact resistance
500mΩ max.
Travel （mm）
0.15
Protective structure ※
IP67 equivalent
4,500
Japan Export
Operating force Operating life
（5mA 5V DC）
Product No.
■Product Line
Operating direction
Side push
1. 6 N
SKTDLDE010 200,000 cycles
■Dimensions Unit:mm
PC board mounting hole and land dimensions
（Viewed from switch mounting face）
Style
■Packing Specifications
Taping
Reel size
Unit:mm
4,500
Minimum order unit （pcs.）
ø380 13.5
1.5
0.9
Guide bosses
3.9
2.9
0.95
1.5
1.550.45
Stem
3.7
2.3
1.15 1.15
0.950.95 1.1
0.8 1.1
1.4
2.10.7 0.7
2- Ø 0.55
2- R 0.4
Through-hole
1 2
Number of packages （pcs.） Tape width
（mm）
Export package
measurements （mm）
1 reel 1 case / Japan
1 case / export packing
4,500 45,000 45,000 12 395×395×205
For reels of 330mm diameter, please inquire.
Note
※ Assumes the switch is left alone without being operated. Under the
specified conditions, dust and water ingress with a significant impact on
the switch's on-off function is prevented.
IP67 dust and water resistance is guaranteed for the switch alone and
performance may not be guaranteed depending on the mounting conditions
and usage.
1.5
0.9
Guide bosses
3.9
2.9
0.95
1.5
1.550.45
Stem
3.7
2.3
1.15 1.15
0.950.95 1.1
0.8 1.1
1.4
2.10.7 0.7
2- Ø 0.55
2- R 0.4
Through-hole
1 2
Refer to P.249 for soldering conditions.
①②
184
TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
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.
TACT SwitchTM
List of Varieties
Type Sharp Feeling Type
Surface Mount
Series
SKST SKRA SKHM SKHU SKTD SKSN SKTG SKSL
Photo
Features
Middle travel — — Low–profile Mid-mount Half-mount
Water-proof
—○—○●—●—
Dust-proof
—○—○●—●—
IP standard
—
67 equivalent
— —
67 equivalent
—
67 equivalent
—
Operating
direction
Top push
●●●●— — — —
Side push
————● ● ● ●
Dimensions
（mm）
W
□8.5 □6.2
6.2 6.2 3.9 6.2 5.2 4.5
D
6.5 6.3 2.9 33.5 2.6
H
3.95 3.5/5.2 3 .1 2 . 5 / 3 .1 1. 5 5 3.5 1. 5 5 2.2
Operation
force
coverage
1N max.
1N to 2N
2N to 3N
4 N to 10N
3N to 4N
4N to 5N
Travel （mm）
0.9
See the relevant pages for
respective product
description
0.25 0 .15 0.2 0 .15
Ground terminal
——●●●●●●
Operating temperature range
−40℃ to ＋90℃ −40℃ to ＋85℃
−
30℃ to ＋85℃
−
40℃ to ＋85℃
−30℃ to ＋85℃
Automotive use
● ○ —○——— —
Life Cycle
Electrical
performance
Rating （max.）
（Resistive load）
5 0m A 16V
DC 5 0 m A 12 V D C
Rating （min.）
（Resistive load）
10μA 1V D C
Insulation resistance
10 0 MΩ min . 10 0V D C 1mi n .
Voltage proof
250V AC 1min.
10 0 V A C 1m i n.
250V AC 1min. 10 0V 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℃ 1,000h
−40℃ 96h
Dry heat
90℃ 1,000h 90℃ 96h 85℃ 96h 90℃ 96h 85℃ 96h 90℃ 96h
Damp heat
60℃, 90 to 95%RH
1,000h
60℃, 90 to 95%RH 96h
Page
230 231 232 233 235 236 237 238
TACT SwitchTM Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・249
TACT SwitchTM Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 250
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.
249
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
Temperature profile
■Condition for Reflow
Available for Surface Mount Type.
180
150
260˚C max. 3s max.
230˚C
Time
120s 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. Please confirm the specifications of our product for the detailed condition.
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 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.
SKHLTop Push Type, SKQJ
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 Series
Items Condition
Soldering temperature
360℃ max.
Duration of soldering
3s max.
Capacity of soldering iron
60W max.
SKTD, SKTG, SKQJ Series
Items Condition
Soldering temperature
350℃ max.
Duration of soldering
3s max.
Capacity of soldering iron
20W max.
