TACT Switch
TM
3.9×2.9mm Compact (Surface Mount Type)
SKRK
Series
1.5mm or 2mm stem height contribute to smaller and thinner sets.
Detector
Push
Slide
Rotary
Product Line
Product No.
SKRKAEE010
SKRKAHE010
SKRKAGE010
Operating Operating Travel Rating Rating Operating life Initial contact
force
direction
（mm） （max.） （min.） （5mA
5V DC）
resistance
1.57N
1N
1.57N
Vertical
0.13
50mA
12V DC
100mΩ max.
Stem
height
Minimum order unit
（pcs.）
4,500
5,000
Drawing
No.
1
2
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
h=2mm
10BA
200,000cycles 500mΩ max.
1V DC
100mΩ max. h=1.5mm
Specification of Embossed Taping Package (Taping Packaging for Auto-insertion)
Reel Size
Plastic Reel
Series
Unit:mm
Number of packages pcs.）
（
1 reel
1 case
/Japan
45,000
Custom-
Products
Tape width
（mm）
1 case
/export packing
45,000
SKRKAE
SKRKAH
¿380
13.5
4,500
12
5,000
50,000
50,000
SKRKAG
Dimensions
No.
Photo
Style
4.8
1
3.9
2
Unit:mm
PC board mounting hole dimensions
（Viewed
from switch mounting face）
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
（2.5）
2.9
1.4
Resist coating
Radial
Type
2
1
ø1.8
Stem
3.4
5
2
1.5
4.8
3.9
1
2
（2.5）
2.9
1.4
Resist coating
2
）
ø
1
（
（depth 0.3）
ø1
.8
3.4
5
Circuit Diagram
1.5
Note
2
1. Please place purchase orders for taping products per minimum
order unit (1 reel or a case).
2. For
φ330mm
diameter reel requirements, please contact us.
Refer to
P.306
for soldering conditions.
1
2
Stem
)
.6
R0
(S
281
TACT Switch
TM
List of Varieties
Sharp Feeling Type
Series
SKSD
SKRN
SKSE
SPEE
SKRK
SKRP
SKQM
SKQY
SKRA
SKHM
SKHU
Detector
Push
Type
Features
Operating
direction
Vertical
Horizontal
W
Dimensions
（mm）
D
H
1N
Operation
force
coverage
5N
Ground terminal
Operating
temperature
range
Electrical
performance Durability
Insulation
resistance
Voltage
proof
Vibration
Lifetime
Cold
Dry heat
Damp heat
Page
½30±2℃
for 96h
80±2℃ for 96h
60±2℃, 90 to 95%RH for
96h
278
279
280
●
●
●
―
●
―
●
●
See the relevant pages for respective
product descriptions
4.1
□6
3.9
0.6
0.9
2.87
3
5
1.22
2.9
1.5
3.2
2.5
3.5
4.3
3.7
2.5
3.4
3.1
Double action
●
―
●
●
5.9
Horizontal type
Double action
―
●
4
3.9
4.2
6
Surface mount
Compact size High operation force
Low-profile Compact size
●
●
Compact size
●
●
―
Middle
stroke
●
―
●
Dust–proof
type
is available
Photo
Slide
Rotary
●
Encoders
Power
6.1
□6.2
6.5
2.5
6.2
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
½30℃
to
＋85℃
½10℃
to
＋60℃
10MΩ min.
100V DC
½30℃
to
＋85℃
Sharp
Feeling
Soft
Feeling
100MΩ min. 100V DC
100MΩ min. 100V DC
250V AC for 1min.
250V AC for 1min.
100V AC for
SKSD/SE : 100V AC for 1min.
1min.
Snap-in
Type
Surface
Mount Type
Radial
Type
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 2hours respectively
Shall be in accordance with individual specifications.
½40±2℃
for 96h
85±2℃
for 96h
40±2℃, 90 to
95%RH for 96h
84
281
282
½30±2℃
for 96h
80±2℃ for 96h
60±2℃, 90 to 95%RH for 96h
283
284
285
286
287
●
TACT Switch
TM
Soldering Conditions ………………………………………………………………………………………306
●
TACT Switch
TM
Cautions ………………………………………………………………………………………………………307
●
Product Line of Knob for TACT Switch
TM
……………………………………………………………………………………308
Note
The automotive operating temperature range to be individually discussed upon request.
Environmental
performance
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.
249
TACT Switch
TM
Soldering Conditions
Condition for Reflow
Available for Surface Mount Type.
1. Heating method: Double heating method with infrared heater.
2. Temperature measurement: Thermocouple 0.1 to 0.2φ CA
（K）
CC
or
（T）
solder joints copper foil surface） A heat resistive tape
at
（
.
Detector
Push
Slide
Rotary
Encoders
Power
should be used to fix thermocouple.
3. Temperature profile
Temperature (˚C )
260˚C max. 3 sec max.
180
150
Time
230˚C
Dual-in-line
Package Type
TACT Switch
TM
120 sec max. pre-heating ）
（
3 to 4min.
40s max.
Custom-
Products
Time inside soldering equipment
Note
1. The above temperature shall be measured on the mounting surface of a PC board. 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.
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
Conditions for Auto-dip
Available for Snap-in Type and Radial Type
（Except
SKHJ, SKHL, SKQJ, SKQK, SKEG series）
Items
Flux built-up
Condition
Mounting surface
should not be exposed to fluk
Ambient temperature of the soldered
surface of PC board.
100℃ max.
60s max.
260℃ max.
5s max.
2times max.
Manual Soldering（Except SKRT Series）
Items
Soldering temperature
Duration of soldering
Capacity of soldering iron
Condition
350℃max.
3s max.
60W max.
Preheating temperature
Preheating time
Soldering temperature
Duration of immersion
Number of soldering
Notes
1.
2.
3.
4.
5.
Consult with us for availability of TACT Switch
TM
washing.
Prevent flux penetration from the top side of the TACT Switch
TM
.
Switch terminals and a PC board should not be coated with flux prior to soldering.
The second soldering should be done after the switch is stable with normal temperature.
Use the flux with a specific gravity of min 0.81.
（EC-19S-8
by TAMURA Corporation, or equivalents.）
306
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