TACT SwitchTM
Radial
Type
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
322
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
Custom-
Products
Product Line
Operating
force Travel
（mm）Rating
（max.）Operating life
（5mA 5V DC）
Initial contact
resistance Stem colorProduct No.
SKQNLAD010
SKQNLBD010
0.98N
1.57N
Horizontal
100,000 cycles
Black
Dark gray
0.25
50mA
12V DC
Rating
（min.）
10BA
1V DC
100mΩmax.
Operating
direction
Refer to P.334 for soldering conditions.
Dimensions Unit:mm
9
3.55
（
3.3
）
¿0.5
(25.1)
18
¿4
5
12.7
7.3
6.35 12.7
18
4
4
7.1
7.1
123
¿3.5
Stem
2.5 2.5
3-ø0.9 holes
Style
PC board mounting hole dimensions
（Viewed from switch mounting face）
123
1. Please connect 1 and 3 terminals on the circuit board pattern
because 1 and 3 terminals sometimes have resistance.
1. Terminals 1- 3 shall not be used as jumper leads.
3. Please use 1.6mm thick PC boards.
4. Please place purchase orders per minimum order unit N
(integer).
Notes
Circuit Diagram
7.3×6.85mm SidepushTM(Radial Type)
SKQN Series
Round terminal horizontal type with excellent PC board mounting performance.
TACT SwitchTM
Packing Specifications
47
331
291
Radial Taping
Box size
900
Minimum order unit
（pcs.）
900 9,000 9,000
Number of packages（pcs.）
354×606×272
Export package
measurements
（mm）
1 box 1 case
/Japan
1 case
/export packing
Unit:mm
Automotive
Use
TACT SwitchTM
279
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
Custom-
Products
TACT SwitchTM
List of Varieties
Sharp Feeling Type
W：Width. The total dimension excluding terminal portion.
D ：Depth. The total dimension excluding terminal portion.
H ：Height. The minimum dimension if there is difference in product variety.
● TACTSwitchTMSolderingConditions………………………………………………………………………………………334● TACTSwitchTMCautions………………………………………………………………………………………………………335● ProductLineofKnobsforTACTSwitchTM…………………………………………………………………………………336
3.9
1.5
3.5
6.2
3.55
6.3
1.252.5
SKSCSKHU ●
——
●●
—
●SKRE
●
Low–profile
Horizontal type
Dust–proof
type
is available
V6.2
4.3 □6.6
5
7.3
6.85
7.1
V9
13
4.5
3.3
6.45
6.4
4
7.35
7.5
5□10
7.1
See the relevant pages
for respective product
descriptions
Surface mount Radial
Type
Dimensions
（mm）W
D
H
1N
5N
Operation
force
coverage
Features
Photo
Ground terminal
Horizontal
type
SKRT
4–direction switch＋push
switch
SKRV
●SKRH
●
Round
terminal type
SKQU
●SKRG
●SKQK
●SKQN
●
——
SKRC
—
●
Round terminal
Horizontal type
Water–
proof
Operating
direction
Vertical
Horizontal
Series
Operating
temperature
range ｰ20℃
to
＋70℃
SKRV/QK
ｰ30℃
to
＋85℃Automotive use
○●
—
●
—100MΩmin. 100V DC
250V AC for 1min.
SKSC/RE/RV/RH : 100V 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 the individual specification.
Electrical
performance
Durability
Environmental
performance
Insulation
resistance
Voltage
proof
Vibration
Lifetime
Cold
Dry heat
Damp heat
●
323 322 324321
319
318316
Page 320 484 485483
0.250.20.25
Travel（mm）See the relevant pages for
respective product
descriptions
1. The automotive operating temperature range to be individually discussed upon request.
2. ○marks in "Available for automotive use" indicate that some of the series products can work at the operating
temperature range from -40℃to +85℃, ●marks in "Available for automotive use" indicate that all of the series
products can work at the operating temperature range from -40℃to +85℃.
Notes
TACT SwitchTM
Sharp
Feeling
Soft
Feeling
Snap-in
Type
Surface
Mount Type
Radial
Type
334
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
Custom-
Products
1. Heating method: Double heating method with infrared heater.
2. Temperature measurement: Thermocouple 0.1 to 0.2φCA（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.
180
150
260˚C max. 3 sec max.
230˚C
Time
120secmax.（pre-heating）
3 to 4min.
Time inside soldering equipment
Temperature (˚C )
40s max.
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 SwitchTM washing.
2. Prevent flux penetration from the top side of the TACT SwitchTM.
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, SKHL, SKQJ, SKQK, SKEG series）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.
Notes
TACT SwitchTM