225
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TACT SwitchTM Sharp
Feeling Soft
Feeling Snap-in
Type Surface
Mount Type Radial
Type
C
ompact 2.8 × 2.4mm projection structure helps prevent deterioration in the
sharpness of the operating feel, which can be caused by misalignment in assembling
2.8 × 2.4mm Compact Type with Projection (Surface Mount Type)
SKSF
1
2
3
4
（ ）
20,000 20,000
Japan Export
1
2
3
4
（ ）
■Product Line
Operating force Operating life
（5mA 5V DC）
1. 6 N
Product No.
SKSFABE010 100,000 cycles
Operating direction
Top push
PC board land dimensions
（Viewed from switch mounting face）
Style
■Dimensions Unit:mm
■Circuit Diagram
②
③
④
①
■Packing Specifications
Taping
Reel size
Unit:mm
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）
0.1
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
20,000 200,000 200,000 12 395×395×205
For reels of 330mm diameter, please inquire.
Note
191
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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
SKSD SKRN SKTA SKSV SKSW SKSF SKSM SKTK SKSG
Photo
Features
Double action Compact size
Low-profile Long life
High operation
force
Compact size
Water-proof
——●●●—● ● —
Dust-proof
——●●●—● ● —
IP standard
— —
67
equivalency
67
equivalency
67 equivalency
68 equivalent in
some cases
—
67
equivalency
67
equivalency
—
Operating
direction
Top push
●●●●●●●●●
Side push
—————————
Dimensions
（mm）
W
4 .1
□6
2.6 2.8 32.8 3.4 5.9 3
D
3.9 1. 6 1. 9 22.4 2.9 42.7
H
0.6 0.9 0.53 0.55 0.6 0.65 0.7 0.78 1. 4
Operation
force
coverage
1N max.
See the relevant pages
for respective product
descriptions
1N to 2N
2N to 3N
3N to 4N
4N to 5N
Travel （mm）
See the relevant pages for
respective product descriptions
0 .11 0 .12 0 .13 0 .1 0.25 0 .12
Ground terminal
● ● ————— — ○
Operating temperature range
−40℃ to ＋90℃ −30℃ 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 m i n. 10 0 V D C 1mi n .
50MΩ min.
10 0 V D C 1m i n .
10 0 MΩ m i n.
10 0 V D C 1m i n .
Voltage proof
10 0 V A C
1m i n .
250V AC
1m i n .
10 0 V A C 1min .
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
Damp heat
60℃, 90 to 95%RH 96h
Page
219 220 2 21 222 223 225 226 227 228
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.
NEW NEW
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.
