TACT Switch
TM
7.8mm Square(Snap-in Type)
SKEY
Series
7.8mm
G
7.8mm soft operation feeling for generic use.
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
Product Line
Product No.
SKEYAHA010
SKEYAJA010
SKEYACA010
Operating Operating Travel Rating Rating Operating life Initial contact
force
direction
（mm）（max.）（min.） （5mA
5V DC） resistance
0.78N
1.18N
2.45N
Vertical
1
1.2
5mA
12V DC
10BA
1V DC
500,000cycles
100,000cycles
TACT Switch
TM
Rubber
color
Light gray
Height
Minimum order
unit（pcs.）
1,000
Custom-
Products
h=5mm
500Ω max. Light blue
Blue
h=5.5mm
Dimensions
Style
H
7.8
Unit:mm
PC board mounting hole dimensions
（Viewed
from switch mounting face）
h
5
5.5
4.5
2
1
Sharp
Feeling
Soft
Feeling
Snap-in
Type
8.5
3
4
Surface
Mount Type
4.5
ø3.5
Rubber dome
Radial
Type
4-ø1 holes
3
8.5
3.5
h
0.7
0.7
Circuit Diagram
Note
Using a 1.6mm thick PC board is recommended.
1
3
2
4
Refer to
P.306
for soldering conditions.
299
TACT Switch
TM
List of Varieties
Soft Feeling Type
Series
SKEG
SKPE
SKEG
SKEY
SKPF
SKPM
SKPN
SKPG
SKPL
SKPD
Detector
Push
Type
Features
Operating
direction
Electrical
performance Durability
Environmental
performance
Vertical
Horizontal
W
Dimensions
（mm）
□6
●
―
6.6
6.3
7
5
―
●
Snap–in
Horizontal
type
―
●
7.5
□7.8
9.9
7.3
Carbon
5
9
10
6
5
Silver
6.7
7
Carbon
6.3
5
Silver
Carbon
8
5.9
―
●
High operation force
and long stroke
●
Surface mount
Low contact
resistance
●
●
―
―
●
Radial
Round terminal and
low contact resistance
●
Photo
Slide
―
Rotary
●
Encoders
Power
6
6.6
V6.45
□7.8
D
H
Dual-in-line
Package Type
TACT Switch
TM
Contact
1N
Operation
force
coverage
5N
Ground terminal
Operating
temperature
range
Insulation
resistance
Voltage
proof
Vibration
Lifetime
Cold
Dry heat
Damp heat
Page
296
298
Custom-
Products
―
½20℃
to
＋70℃
SKEG
½40℃
to
＋90℃
100MΩ min. 100V DC
SKEY/PD：50MΩ min. 100V DC
250V AC for 1min. SKPN : 200V AC for 1min.
SKEY/PD : 100V 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
296
299
300
301
302
303
304
305
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
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.
●
TACT Switch
TM
Soldering Conditions ………………………………………………………………………………………306
●
TACT Switch
TM
Cautions ………………………………………………………………………………………………………307
●
Product Line of Knob for TACT Switch
TM
……………………………………………………………………………………308
251
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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