TACT Switch
TM
8mm Square LED Built-in (Snap-in Type)
SKHJ
Series
LED built-in type with a good reputation for wider color varieties.
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
Product Line
Without LED Type
Product No.
SKHJAAA010
SKHJABA010
SKHJACA010
With LED Type
Product No.
SKHJFAA010
SKHJFBA010
SKHJFCA010
SKHJFGA010
SKHJFHA010
SKHJFDA010
SKHJFEA010
SKHJFFA010
SKHJGRA010
SKHJGSA010
SKHJGEA010
SKHJGFA010
SKHJGGA010
2.55N
200,000
cycles
1.57N
Vertical
0.25
50mA 10BA
12V DC 1V DC
100mΩ max.
500,000
cycles
Gray
0.98N
1,000,000
cycles
Black
Operating Operating Travel Rating Rating Operating life Initial contact
direction
（mm） （max.） （min.） （5mA
5V DC）
force
resistance
0.98N
1.57N
2.55N
Vertical
0.25
1,000,000cycles
50mA 10BA
500,000cycles
12V DC 1V DC
200,000cycles
100mΩ max.
Frame
color
Black
Gray
Brown
Minimum order Drawing
No.
unit pcs.）
（
1,000
1
Operating Operating Travel Rating Rating Operating life Initial contact Frame
direction
（mm） （max.） （min.） （5mA
5V DC） resistance
force
color
LED
color
Red
Pure green
Amber
Orange
（High
brightness）
Minimum order Drawing
No.
unit pcs.）
（
Sharp
Feeling
Soft
Feeling
Snap-in
Type
1,000
2
Green
（High
brightness）
Red
Pure green
Amber
Green
（High
brightness）
Surface
Mount Type
Radial
Type
Orange
（High
brightness）
Red
Brown Pure green
Amber
Specifications of LED
（SKHJ）
Color of
illumination
Power
Forward pulse Forward
dissipation peak current current
P
（mW）
Red
Pure green
Amber
Orange
（High
brightness）
Green
（High
brightness）
40
80
15
3
4
4
Reverse
voltage
Forward
voltage
VF V）
（
IF=10mA
2.7 max.
2.05TYP
2.7 max.
2.0 TYP
2.7 max.
2.05TYP
Reverse
current
IFP mA）
（
IFDC
（mA）
VR
（V）
Peak
emission
wave length
IR
B
A）
λpeak
nm）
（
（
VR=4V
IF=10mA
5 max.
700 TYP
555 TYP
590 TYP
Spectral
line half
width
Δλ
（nm）
IF=10mA
100 TYP
20 TYP
30 TYP
40 TYP
30 TYP
Luminous
intensity
IV
（mcd）
IF=10mA
0.4min.
1.0 TYP
0.8min.
2.0 TYP
0.4min.
1.0 TYP
1.5min.
4.0 TYP
2.0min.
5.0 TYP
10 max.
630 TYP
565 TYP
Refer to
P.306
for soldering conditions.
Refer to
P.308
for standard knobs.
263
TACT Switch
TM
8mm Square LED Built-in (Snap-in Type)
SKHJ
Series
Dimensions
No.
Photo
Without LED type
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
3.5
8.5
3
1
□
8
Unit:mm
Style
PC board mounting hole dimensions
（Viewed
from switch mounting face）
2
3
Frame
4
4.5
1
5
4.6
4-ø1 holes
7.5
7.5
6
0.7
0.7
With LED type
□
8
1
2
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
0.5
7.5
3
Frame
5
4
4.6
4.5
4.5
8.5
6
3.5
4
3
2
6-ø1 holes
7.5
0.2
0.7
5
7
0.7
5
0.2
6
Note
Please use 1.6mm thick PC boards.
Circuit Diagram
Without LED type
With LED type
1
3
2
4
1
3
5
2
4
6
264
7
4.5
TACT Switch
TM
List of Varieties
Sharp Feeling Type
Series
SKHR
SKHL
SKHH
SKHW
SKRD
SKQJ
SKHL
SKHH
SKQJ
SKHJ
SKQB
Detector
Push
Type
Features
Operating
direction
Vertical
Horizontal
W
Dimensions
（mm）
□4.5
6
□6
3.5
3.8
4.3
7.15
7.4
5
●
―
●
―
●
Dust–proof Horizontal
type
type
●
―
●
6.2
□6.6
7.22
4.3
7.4
7.85
7.3
8.5
5
Snap–in
―
●
―
●
7.3
Horizontal type
―
●
7.5
□8
□10
●
With
LED
●
―
Water–
proof
●
Photo
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
D
H
1N
Custom-
Products
Operation
force
coverage
5N
Ground terminal
Operating
temperature
range
Electrical
performance Durability
Insulation
resistance
Voltage
proof
Vibration
Lifetime
Cold
Dry heat
Damp heat
Page
252
253
255
259
―
●
―
●
●
―
½20℃
to
＋70℃
SKHJ/HL Vertical Type）/QJ
（
½30℃
to
＋85℃
100MΩ min. 100V DC
250V AC for 1min.
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.
½30±2℃
for 96h
80±2℃ for 96h
60±2℃, 90 to 95%RH for 96h
260
261
253
255
261
263
265
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
●
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.
247
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
TACT Switch
TM
Product Line of Knobs
Unit:mm
Variety
Applicable model
Detector
Keytop
Push
H
4
Dimensions
Color
Model
Label dimensions
（Unit:mm）
Slide
SKHH
5.5
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
Applicable to joint
stem type
SKHC
SKQE
Cap
Red
Blue
Ivory
Black
Yellow
SK2AA00410
SK2AA00420
SK2AA00430
SK2AA00440
SK2AA00450
Applicable to joint
stem type
Cap
Clear
H
10
H
12
2.8
SK2AA00510
H
10
Keytop
3
4
Keytop + Cap
4-
R
1
Key top
Red
Blue
Ivory
Black
SK2AA00010
SK2AA00020
SK2AA00030
SK2AA00040
Cap
SK2AA00060
SK2AA00070
SK2AA00080
SK2AA00090
1.5
Thickness 0.1
Clear
H
6.5
H
5
H
8
SK2AA00520
H
6.5
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
SKHJ
Cap
1.8
3.8
Keytop
Red
Blue
Ivory
Black
Yellow
SK2AA00210
SK2AA00220
SK2AA00230
SK2AA00240
SK2AA00250
Cap
H
7.4
Keytop + Cap
Key top
SK2AA00260
SK2AA00270
SK2AA00280
SK2AA00290
SK2AA00300
Thickness 0.1
Radial
Type
SKEG
Clear
SK2AA00540
H
6
H
6
Key top
Applicable to joint
stem type
Red
Blue
Ivory
Black
Yellow
SK2AA00310
SK2AA00320
SK2AA00330
SK2AA00340
SK2AA00350
SK2AA00360
SK2AA00370
SK2AA00380
SK2AA00390
SK2AA00400
3
4
Thickness 0.1
Notes
1. The knob will be delivered together with the switch but packed separately.
2. The label is not included.
3. For SK2AA00010 to SK2AA00090 types, please check the mounting direction.
SK2AA00010~00090(Keytop)
Stem of key switch
308
4-
RO
.5
Cap
Keytop
Keytop + Cap
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