
TACT Switch
TM
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
252
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
CustomProducts
Please use 1.6mm thick PC boards.
Note
Refer to P.306 for soldering conditions.
Product No.
Operating
force
Travel
(mm)
Rating
(max.)
Operating life
(5mA 5V DC)
Initial contact
resistance
Stem color
SKHRAAA010
SKHRABA010
SKHRAHA010
0.98N
1.57N
2.55N
0.25
50mA
12V DC
Rating
(min.)
10BA
1V DC
50,000cycles
30,000cycles
50,000cycles
100mΩ
max.
Black
Dark gray
Red
Vertical
Minimum order
unit(pcs.)
1,000
Operating
direction
Product Line
Style
Dimensions
Unit:mm
PC board mounting hole dimensions
(Viewed from switch mounting face)
4.5mm Square Compact (Snap-in Type)
SKHR
Series
Compact snap-in type contribute to improve high density mounting.
TACT Switch
TM
1
3
H4.5
ø2.5
2.9
2
3
4
3.83.5
Stem
5
12
34
0.7
0.7

TACT Switch
TM
247
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
CustomProducts
TACT Switch
TM
List of Varieties
Sharp Feeling Type
Snap–in
Type
Dimensions
(mm)
W
D
H
1N
5N
Operation
force
coverage
Page
Features
Photo
Ground terminal
SKHR
□4.5
3.8
252
●
―
―
SKHL
6
3.5
4.3
253
●
SKHH
□6
255
●
●
SKHW
259
●
―
Dust–proof
type
SKRD
6.2
7.15
7.4
260
―
Horizontal
type
SKQJ
□6.6
5
261
●
―
SKHL
7.3
7.22
4.3
253
―
●
Horizontal type
SKHH
7.5
7.85
7.4
255
●
SKQJ
7.3
261
―
SKHJ
□8
8.5
263
●
With
LED
SKQB
□10
5
265
●
Water–
proof
Operating
direction
Vertical
Horizontal
Series
Operating
temperature
range
ー20℃to+70℃
SKHJ/HL
(Vertical Type)
/QJ
ー30℃to+85℃
100MΩ min. 100V DC
250V AC for 1min.
ー30±2℃ for 96h
80±2℃ for 96h
60±2℃, 90
to
95%RH for 96h
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.
Electrical
performance
Durability
Environmental
performance
Insulation
resistance
Voltage
proof
Vibration
Lifetime
Cold
Dry heat
Damp heat
―
●
―
● ● ●
―
● TACTSwitchTMSolderingConditions ………………………………………………………………………………………306
● TACTSwitch
TM
Cautions ………………………………………………………………………………………………………307
● ProductLineofKnobforTACTSwitch
TM
……………………………………………………………………………………308
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.
The automotive operating temperature range to be individually discussed upon request.
Note

Snap-in
Type
Surface
Mount Type
Radial
Type
TACT Switch
TM
Sharp
Feeling
Soft
Feeling
306
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
CustomProducts
TACT Switch
TM
1. Heating method: Double heating method with infrared heater.
2. Temperature measurement: Thermocouple 0.1 to 0.2φ CA(K)or CC(T)at solder joints(copper foil surface). A heat resistive tape
should be used to fix thermocouple.
3. Temperature profile
Soldering Conditions
Condition for Reflow
Available for Surface Mount Type.
Manual Soldering
(
Except SKRT Series)
Flux built-up
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.
Preheating temperature
Preheating time
Soldering temperature
Duration of immersion
Items Condition
Condition
2times max.
Number of soldering
Soldering temperature
350℃max.
3s max.
Duration of soldering
60W max.
Capacity of soldering iron
Items
1. Consult with us for availability of TACT SwitchTMwashing.
2. Prevent flux penetration from the top side of the TACT Switch
TM
.
3. Switch terminals and a PC board should not be coated with flux prior to soldering.
4. The second soldering should be done after the switch is stable with normal temperature.
5. Use the flux with a specific gravity of min 0.81.
(EC-19S-8 by TAMURA Corporation, or equivalents.)
Notes
Conditions for Auto-dip
Available for Snap-in Type and Radial Type
(Except SKHJ, SKHL, SKQJ, SKQK, SKEG series)
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.
Note
Temperature (˚C )
260˚C max. 3 sec max.
180
230˚C
150
Time
120secmax.(pre-heating)
40s max.
3 to 4min.
Time inside soldering equipment