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
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
Power
Frame
color
Black
100mΩ max.
Gray
Brown
1,000
1
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
Minimum order Drawing
No.
unit pcs.）
（
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
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.）
（
Green
（High
brightness）
Sharp
Feeling
Soft
Feeling
1,000
2
Red
Pure green
Amber
Green
（High
brightness）
Snap-in
Type
Surface
Mount Type
Radial
Type
Orange
（High
brightness）
Red
Brown Pure green
Amber
Packing Specifications
Bulk
Series
SKHJAA,SKHJAB
SKHJAC
Other
Number of packages pcs.）
（
1 case /export packing
1 case /Japan
4,000
2,000
12,000
309×476×347
8,000
Export package
measurements（mm）
Specifications of LED
（SKHJ）
Color of
illumination
Red
Pure green
Amber
Orange
（High
brightness）
Green
（High
brightness）
40
80
15
3
4
4
Power
Forward pulse Forward Reverse Forward Reverse
current
dissipation peak current current voltage voltage IR
B
A）
VF V）
（
（
（V）
IF=10mA VR=4V
P
（mW）
IFP mA） IFDC
（
（mA）
VR
2.7 max.
2.05TYP
2.7 max.
2.0 TYP
2.7 max.
2.05TYP
5 max.
Peak emission
wave length
λpeak
nm）
（
IF=10mA
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
Note
Please place purchase orders per minimum order unit N (integer).
Refer to
P.328
for soldering conditions.
Refer to
P.330
for standard knobs.
286
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
287
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
275
276
278
282
―
●
―
●
―
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
283
284
276
278
284
286
288
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
●
TACT Switch
TM
Soldering Conditions ………………………………………………………………………………………328
●
TACT Switch
TM
Cautions ………………………………………………………………………………………………………329
●
Product Line of Knob for TACT Switch
TM
……………………………………………………………………………………330
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.
270
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
（
.
should be used to fix thermocouple.
3. Temperature profile
Detector
Push
Temperature (˚C )
260˚C max. 3 sec max.
180
150
Time
120 sec max. pre-heating ）
（
3 to 4min.
Time inside soldering equipment
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.
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
230˚C
40s max.
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.
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
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.）
328
TACT Switch
TM
Product Line of Knobs
Unit:mm
Variety
Applicable model
Dimensions
Color
Keytop
Push
H
4
Model
Label dimensions
（Unit:mm）
Detector
SKHH
5.5
Red
Blue
Ivory
Black
Yellow
SK2AA00410
SK2AA00420
SK2AA00430
SK2AA00440
SK2AA00450
Slide
Rotary
Encoders
Applicable to joint
stem type
Cap
Clear
H
10
H
12
2.8
Power
Dual-in-line
Package Type
TACT Switch
TM
4-
R
1
SK2AA00510
H
10
3
4
SKHC
SKQE
Cap
Keytop
Red
Blue
Ivory
Black
SK2AA00010
SK2AA00020
SK2AA00030
SK2AA00040
Cap
Clear
H
6.5
Keytop + Cap
Key top
Applicable to joint
stem type
SK2AA00060
SK2AA00070
SK2AA00080
SK2AA00090
1.5
Custom-
Products
Thickness 0.1
SK2AA00520
H
6.5
H
5
H
8
SKHJ
Cap
1.8
3.8
Keytop
Red
Blue
Ivory
Black
Yellow
SK2AA00210
SK2AA00220
SK2AA00230
SK2AA00240
SK2AA00250
Cap
H
7.4
Keytop + Cap
Sharp
Feeling
Soft
Feeling
Thickness 0.1
Snap-in
Type
Surface
Mount Type
H
6
Key top
SK2AA00260
SK2AA00270
SK2AA00280
SK2AA00290
SK2AA00300
Clear
SK2AA00540
Keytop
Radial
Type
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
4-
RO
.5
SKEG
Cap
Keytop + Cap
330
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