YH

YH Illuminated Pushbutton Switch
Big button size □25 mm.
Easy to see and push.
■ Depth behind panel：Only 22.5 mm■ LED Full-Face, Dual-Color, 2-Split-Face illumination available.
■ Terminal：#110 Tab・Soldering・PCB■ Accessories：Barriers, Guard covers

NC

Switchconnection C

NO

CHARACTERISTICS
Square：□25 mm

Button Size
Contact Material
Rating (Resistive Load)

Silver contact (Gold-plated)

Cross-bar contact

AC 125 V 3 A
AC 250 V 3 A

AC 125 V 0.1 A
DC 30 V 0.1 A

Insulation ResistanceMore than 100 MΩ at DC 500 V

Dielectric Strength

AC 1000 V RMS between NC and NO terminal
AC 1500 V RMS between terminals and ground50/60 Hz for 60 sec. at normal ambient temperature and humidity

AC 600 V RMS between NC and NO terminal
AC 1500 V RMS between terminals and ground50/60 Hz for 60 sec. at normal ambient temperature and humidity

Contact ResistanceLess than 30 mΩ (Initial value)at DC 6 V 1 A

Less than 50 mΩ (Initial value)at DC 6 V 0.1 A

Vibration ResistanceMechanical Life

Momentary
AlternateElectrical Life (Resistive Load)

10 to 55 Hz, Amplitude 1.5 mm
More than 2,000,000 operations
More than 200,000 operations
More than 100,000 operations at max. rated load

Operating Force

4.41 Nmax.

Total Travel

3 mm

max.

WeightAmbient Operating Temperature
Ambient Operating Humidity

21 g－15℃ to 50℃（No Freeze, No Condensation）
80%RH max. （No Condensation）

Ambient Storage Temperature－25℃ to 65℃（No Freeze, No Condensation）

Ambient Storage Humidity

80%RH max. （No Condensation）

https://www.sunmulon.co.jp/english/products/switch_e/yh.html◇Dimensions：page YH-3
◇Internal connection arrangements：page YH-12◇Mounting design / Panel cutout：page YH-16◇Accessories：page YH-4
◇LED specifications：page YH-13～14◇Accessories’ dimensions：YH-17

Sunmulon Co., Ltd.

◇Ordering code：page YH-5～10◇Terminals / PCB hole cutout：page YH-15

YH-1

SPECIFICATIONS
Illumination
type
Contact

Terminal

Full-FaceA

Dual-ColorA

2-Split-Face (Horiz.)

A

SPDT

A

DPDT

CONTACT RATINGS● Silver contact (Gold-plated)
Voltage

Current (A)(Resistive load)A

AC 125 V
250 V

3
3

#110 Tab
Soldering

A

DC

3

PCB

A

RoHS (10 Substances)

Conform to standards

8V
14 V
30 V
125 V

3
2
0.4

A : Applicable● Cross-bar contact
Rating

AC 125 V 0.1 A (Resistive load)
DC 30 V 0.1 A (Resistive load)

Minimum applicable load DC

5 V 1 mA (Resistive load)

STRUCTURE
Full-Face
Dual-Color

2-Split-Face

LIGHT CARTRIDGE
BUTTONFILTERLED UNIT

HOUSING

Sunmulon Co., Ltd.

YH-2

ILLUMINATION TYPES
7

LED color symbol

Red

8

Green

9

Yellow※ Yellow (9) is actually “ORANGE Yellow” not Lemon Yellow.

Full-Face789Dual-Color

7・8

8・9

9・7

7
7

7
8

7
9

8
7

8
8

8
9

9
7

9
8

9
9

2-Split-Face (Horiz.)

DIMENSIONS□32
Sunmulon mark

29.1
22.5

2.5
3.5

□25

3D

□29

TOP VIEW

DXF

3D・DXF data download site ： https://www.sunmulon.co.jp/download/

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

YH-3

ACCESSORIES
Name

Appearance

Classification

Barrier
Center barrier

3D
DXF

Side barrier

Guard cover
3D

Part no.
Black

WH-0741-K

Gray

WH-0741-G

Black

WH-0740-K

Gray

WH-0740-G

Black

YH-2576-K

Gray

YH-2576-H

For square button

DXF

Removing tool
For removal light cartridge

SJ-0001

Precautions for use- Cannot be used with guard cover.

- The cover to be opened 180°and returnedby spring force.
- Cannot be used with barrier.

- Be used to remove light cartridgefrom housing.

3D・DXF data download site ： https://www.sunmulon.co.jp/download/◇Accessories’ dimensions：YH-17

Sunmulon Co., Ltd.

YH-4

ORDERING CODE 【Full-Face】
Assembled Part

(Light cartridge and Housing)● OPERATION
L

S0

YH

● OPTION

Indicator

M MomentaryA

Alternate

0001

Cathode common

Blank

No option

For other options except for the above,please contact us.

● Supply Voltage to LED● CONTACT0

Indicator

1

DC 5V Built-in resistor

3

SPDT・Silver (Gold-Plated)

2

DC12V Built-in resistor

4

DPDT・Silver (Gold-Plated)

3

DC24V Built-in resistor

5

SPDT・Crossbar

4

DC 5V Non-resistor

6

DPDT・Crossbar

5

DC12V Non-resistor

6

DC24V Non-resistor● BUTTON SHAPE

X Without LED
For Non-resistor type,use external protective resistor.

S0 Square● TERMINALP ♯110 Tab・Soldering● LED COLOR
7

Red

8

Green

9

Yellow

X

Without LED

C
※2)
※1)

● BUTTON COLOR● FILTER COLOR

R

Red

G

Green

O
Y

Yellow
Lemon Yellow

M

Milk-white

K

Black

C

Clear

H

Gray

※1)
※2)

PCB

● HOUSING COLOR

For without button type,specify part numbers of light cartridgeand housing separately.

1

Red

2

Green

3

Yellow

4

Milk-white※1)8Lemon Yellow ※2)

X

Without filter

Filters cannot be used forbuttons other than clear button.

● NOTES※1) The color of “Yellow” for LED (9), button (O) and filter (3) is actually “Orange Yellow” not Lemon Yellow.
※2) When using Lemon Yellow button (Y) and filter (8), specify LED color Green (8).

◇Dimensions：page YH-3
◇Internal connection arrangements：page YH-12◇Mounting design / Panel cutout：page YH-16◇Accessories：page YH-4
◇LED specifications：page YH-13◇Accessories’ dimensions：YH-17

Sunmulon Co., Ltd.

◇Terminals / PCB hole cutout：page YH-15

YH-5

ORDERING CODE 【Full-Face】
LIGHT CARTRIDGE

YH

S0● OPTION● BUTTON SHAPE
S0 Square

Red

8

Green

9
X

Yellow

Cathode common

Blank

No option

For other options except for the above,please contact us.

● LED COLOR
7

0001

※2)
※1)

Without LED● BUTTON COLORR Red
G Green※1)

O Yellow1

DC 5V Built-in resistor

2

DC12V Built-in resistor

3

DC24V Built-in resistor

4

DC 5V Non-resistor

5

DC12V Non-resistor

Lemon Yellow ※2)

6

DC24V Non-resistor

Without filter

X Without LED

1

Red

2

Green

Y Lemon Yellow ※2)

3

Yellow

M Milk-white4

Milk-white

C Clear

8

X Without button● Supply Voltage to LED● FILTER COLOR

X※1)

For Non-resistor type,use external protective resistor.

Filters cannot be used forbuttons other than clear button.

● NOTES※1) The color of “Yellow” for LED (9), button (O) and filter (3) is actually “Orange Yellow” not Lemon Yellow.
※2) When using Lemon Yellow button (Y) and filter (8), specify LED color Green (8).

HOUSING● OPERATION
L

YH

S0

IndicatorC

M MomentaryA● TERMINALP ♯110 Tab・Soldering

Alternate

PCB● HOUSING COLOR● CONTACT0

Indicator● BUTTON SHAPE

3

SPDT・Silver (Gold-Plated)

4

DPDT・Silver (Gold-Plated)

S0 Square

5

SPDT・Crossbar

6

DPDT・Crossbar

Sunmulon Co., Ltd.

K

Black

H

Gray

YH-6

ORDERING CODE 【Dual-Color】
Assembled Part

(Light cartridge and Housing)● OPERATION
L

S3 1 2YH● OPTION

Indicator

M Momentary
A

0001

Alternate

Cathode common

Blank No option
For other options except for the above,please contact us.

● Supply Voltage to LED● CONTACT0

Indicator

1

DC 5V Built-in resistor

3

SPDT・Silver (Gold-Plated)

2

DC12V Built-in resistor※2)

4

DPDT・Silver (Gold-Plated)

3

DC24V Built-in resistor※2)

5

SPDT・Crossbar

4

DC 5V Non-resistor

6

DPDT・Crossbar

5

DC12V Non-resistor

6

DC24V Non-resistor● BUTTON SHAPEFor Non-resistor type,use external protective resistor.

S3 Square● TERMINAL● LED COLOR
7

Red

8

Green

9

Yellow

Put the color numbers into frame 1, 2.
(Dual-Color combination)
78・89・97

P♯110 Tab・SolderingC

PCB● FILTER COLOR ※1)

Yellow (9) is actually “ORANGE Yellow” not Lemon Yellow.

● BUTTON COLOR ※1)
C

Clear

M

Milk-white4

Milk-white

X

Without filter

Filters cannot be used forbuttons other than clear button.

For without button type,specify part numbers of light cartridgeand housing separately.

● HOUSING COLOR● NOTES

K

Black

H

Gray

※1) Button should be C (Clear) with Milk-white filter (4) or M (Milk-white) without filter (X).

※2) Simultaneous lighting is not possible for DC12V or DC24V Built-in resistor type.
Please select DC12V or DC24V Non-resistor type and apply required external resistor for simultaneous lighting.

◇Dimensions：page YH-3
◇Internal connection arrangements：page YH-12◇Mounting design / Panel cutout：page YH-16◇Accessories：page YH-4
◇LED specifications：page YH-13◇Accessories’ dimensions：YH-17

Sunmulon Co., Ltd.

◇Terminals / PCB hole cutout：page YH-15

YH-7

ORDERING CODE 【Dual-Color】
LIGHT CARTRIDGE

S3 1 2YH● OPTION● BUTTON SHAPE

0001

S3 Square● LED COLOR
7

Red

8

Green

9

Yellow

Cathode common

Blank No option
For other options except for the above,please contact us.

Put the color numbers into frame 1, 2.
(Dual-Color combination)
78・89・97● Supply Voltage to LED
1

Yellow (9) is actually “ORANGE Yellow” not Lemon Yellow.

● BUTTON COLOR ※1)

DC 5V Built-in resistor

2

DC12V Built-in resistor ※2)

3

DC24V Built-in resistor ※2)

C

Clear

4

DC 5V Non-resistor

M

Milk-white

5

DC12V Non-resistor

X

Without button

6

DC24V Non-resistor● FILTER COLOR ※1)
4

Milk-white

X

Without filter

For Non-resistor type,use external protective resistor.

Filters cannot be used forbuttons other than clear button.

● NOTES※1) Button should be C (Clear) with Milk-white filter (4) or M (Milk-white) without filter (X).

※2) Simultaneous lighting is not possible for DC12V or DC24V Built-in resistor type.
Please select DC12V or DC24V Non-resistor type and apply required external resistor for simultaneous lighting.

HOUSING● OPERATION
L

YH

S0

IndicatorC

M MomentaryA● TERMINALP ♯110 Tab・Soldering

Alternate

PCB● HOUSING COLOR● CONTACT0

Indicator

3

SPDT・Silver (Gold-Plated)● BUTTON SHAPE

4

DPDT・Silver (Gold-Plated)

S0 Square

5

SPDT・Crossbar

6

DPDT・Crossbar

Sunmulon Co., Ltd.

K

Black

H

Gray

YH-8

ORDERING CODE 【2-Split-Face】
Assembled Part

(Light cartridge and Housing)● OPERATION
L

S2 1 2 C

YH

1 2● OPTION

Indicator

M Momentary
A

0001

Alternate

Cathode common

Blank No option
For other options except for the above,please contact us.

● Supply Voltage to LED● CONTACT0

Indicator

1

3

SPDT・Silver (Gold-Plated)

2

4

DPDT・Silver (Gold-Plated)

3

DC24V Built-in resistor ※4)

5

SPDT・Crossbar

4

DC 5V Non-resistor

DPDT・Crossbar

5

DC12V Non-resistor

6

DC24V Non-resistor

6● BUTTON SHAPE

DC 5V Built-in resistor

DC12V Built-in resistor ※4)

X Without LED※3)

For Non-resistor type,use external protective resistor.

S2 Square● TERMINAL● LED COLOR ※1) ※2)
7

Red

8

Green

9

Yellow

X

Without LED

Put the color numbers into frame 1, 2.
(2-Split-Face combination)
77・78・79・87・88・89・97・98・99♯110 Tab・Soldering
PCB● FILTER COLOR ※1) ※2)

For Non-illuminated
Put XX into frame 1, 2.

The combination of With LED and Without LED cannot be specified.

● BUTTON COLOR
C

P
C

Clear

1

Red

2
3

Green
Yellow

4

Milk-white8

Lemon Yellow

X

Without filter

Put the color numbers
into frame 1, 2.
For Without filter
Put XX into frame 1, 2.

The combination of With filter and Without filter
cannot be specified.

For without button type,specify part numbers of light cartridgeand housing separately.

● HOUSING COLOR● NOTES

K

Black

H

Gray

※1) How to specify the color of LED and filter
Select the color symbols listed in the ordering code, and put them into the frame 1 and 2, referring to the figure below.
The numbers in the figure match the location specified in the ordering code.
The color of “Yellow” for LED (9) and filter (3) is actually “Orange Yellow” not Lemon Yellow.
Sunmulon mark12※2) When using Lemon Yellow filter (8), specify LED color Green (8).

※3) For without LED (X), specify supply voltage to LED X (Without LED).

※4) Simultaneous lighting is not possible for DC12V or DC24V Built-in resistor type.
Please select DC12V or DC24V Non-resistor type and apply required external resistor for simultaneous lighting.

◇Dimensions：page YH-3
◇Internal connection arrangements：page YH-12◇Mounting design / Panel cutout：page YH-16◇Accessories：page YH-4
◇LED specifications：page YH-14◇Accessories’ dimensions：YH-17

Sunmulon Co., Ltd.

◇Terminals / PCB hole cutout：page YH-15

YH-9

ORDERING CODE 【2-Split-Face】
LIGHT CARTRIDGE

S2 1 2YH

1 2● OPTION● BUTTON SHAPE

0001

S2 Square● LED COLOR ※1) ※2)
7

Red

8

Green

9

Yellow

X

Without LED

Cathode common

Blank No option
For other options except for the above,please contact us.

Put the color numbers into frame 1, 2.
(2-Split-Face combination)
77・78・79・87・88・89・97・98・99● Supply Voltage to LED

For Non-illuminated
Put XX into frame 1, 2.

1
2

The combination of With LED and Without LED cannot be specified.

● BUTTON COLOR
C

Clear

X

Without button

Red

2

Green

3

Yellow

4

Milk-white8

Lemon Yellow

X

Without filter

DC12V Built-in resistor ※4)

3

DC24V Built-in resistor ※4)

4

DC 5V Non-resistor

5

DC12V Non-resistor

6

DC24V Non-resistor

X Without LED● FILTER COLOR ※1) ※2)
1

DC 5V Built-in resistor

Put the color numbers
into frame 1, 2.
For Without filter
Put XX into frame 1, 2.

The combination of With filter and Without filter
cannot be specified.

● NOTES※1) How to specify the color of LED and filter
Select the color symbols listed in the ordering code, and put them into the frame 1 and 2, referring to the figure on the right.
The numbers in the figure match the location specified in the ordering code.
The color of “Yellow” for LED (9) and filter (3) is actually “Orange Yellow” not Lemon Yellow.
※2) When using Lemon Yellow filter (8), specify LED color Green (8).
※3) For without LED (X), specify supply voltage to LED X (Without LED).
※4) Simultaneous lighting is not possible for DC12V or DC24V Built-in resistor type.
Please select DC12V or DC24V Non-resistor type and apply required external resistor for simultaneous lighting.

HOUSING

YH

S0● OPERATION
L

Indicator
Alternate

Sunmulon mark1
2

● TERMINALP ♯110 Tab・SolderingC

M MomentaryA※3)

For Non-resistor type,use external protective resistor.

PCB● HOUSING COLOR● CONTACT0

Indicator

3

SPDT・Silver (Gold-Plated)● BUTTON SHAPE

4

DPDT・Silver (Gold-Plated)

S0 Square

5

SPDT・Crossbar

6

DPDT・Crossbar

Sunmulon Co., Ltd.

K

Black

H

Gray

YH-10

REPLACEMENT PARTS● Full-Face BUTTON／FILTER
Red

Green

Yellow

Lemon Yellow

Milk-WhiteClear

BUTTON

YH-2556-1LR

YH-2556-1LG

YH-2556-1LO

YH-2556-1LY

YH-2556-1LM

YH-2556-2CC

FILTER

YH-2558-LR

YH-2558-LG

YH-2558-LO

YH-2558-LY

YH-2558-LM

Yellow

Lemon Yellow

Milk-White● Dual-Color BUTTON／FILTER
Milk-WhiteClear

BUTTON

YH-2556-1LM

YH-2556-2CC

FILTER

YH-2558-LM● 2-Split-Face BUTTON／FILTER
Red

Green

FILTER

Clear
YH-2556-2CC

BUTTON
YH-2559-LR

YH-2559-LG

YH-2559-LO

YH-2559-LY

YH-2559-LM● DIVIDER
Part no.
For 2-Split-Face

YH-2560

FILTER DIMENSIONSLEGENDFACE

LEGEND
FACE

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

YH-11

INTERNAL CONNECTION ARRANGEMENTS● Full-Face
Voltage
BOTTOM VIEW

DC 5V

LC

TOP VIEW
Sunmulon mark※ These are all internal connection diagrams for built-in resistor type.
※ For Non-resistor type, the resistor part in the diagram should be short- circuited.
※ For Cathode Common type, LED polarity (current flow direction) is opposite.

LC

L1
L2

Sunmulon mark

DC12V

LC

LC

L1
L2

Sunmulon mark

DC24V

LC

LC

L1
L2

● Dual-Color● Dual-Color combination (Common for each voltage)

Voltage
BOTTOM VIEW

DC 5V

LC

TOP VIEW

Sunmulon markTerminals
LC-L1

Red

LED Color
Yellow

Red

LC-L2

Green

Green

Yellow

LC

L1
L2

Sunmulon mark

DC12V

LC

LC

L1
L2

Sunmulon mark

DC24V

LC

L1
L2

LC

● 2-Split-Face
Voltage
BOTTOM VIEW

DC 5V

LC

L1
L2

TOP VIEW
Sunmulon markLC

Sunmulon mark

DC12V
DC24V

LC

L1
L2

LC

Sunmulon Co., Ltd.

YH-12

LED SPECIFICATIONS 【Full-Face】● BUILT-IN RESISTOR
Voltage
DC 5V
DC 12VDC 24V±5%

Rated Current (mA)
Red

Green

Yellow

40

60

68

20

30

34

10

15

17

±5%
±5%

● NON-RESISTOR (EXTERNAL RESISTOR)
DC5 V

Supply Voltage
LED Color● Wiring Diagram
IF

DC24V

DC12V

R

Red Green Yellow Red Green Yellow Red Green Yellow

Max. Forward Current IFM(mA) 100 100 100

DC Reverse Voltage VR(V) 10Forward Voltage【IF=20mA】
V F（Typ.）

(V)

50

50

50

25

25

25

10

20

20

20

40

40

40

4.4 4.2

7.2

8.8

8.4 14.4 17.6 16.8

10

3.6

Derating (Operating temperature)(over 25℃ working temperature) (mA/℃)

1.6

0.8

Pulse Width PW （μs）
Pulse
Lighting Duty Ratio DR（mA）
Allowable forward current IFP

VDD

VF

Refer to the following formula
to calculate external resistance values.

0.4
100
10 － 1100

R＝

VDD ：Supply Voltage
VF ：Forward Voltage
I F ：Forward Current

VDD－V FIFIF (Forward Current) :Refer to the Rated Current of BUILT-IN RESISTOR type,and be sure to set less than IFM (Max. Forward Current).

LED SPECIFICATIONS 【Dual-Color】● BUILT-IN RESISTOR
Voltage
DC 5V
DC 12VDC 24V±5%

Rated Current (mA)
Red

Green

Yellow

40

60

68

20

30

34

10

15

17

±5%
±5%

● Wiring Diagram● NON-RESISTOR (EXTERNAL RESISTOR)
DC5 V

Supply Voltage
LED ColorMax. Forward Current IFM
DC Reverse Voltage VR

Forward Voltage【IF=20mA】
V F（Typ.）

DC24V

DC12V

Red Green Yellow Red Green Yellow Red Green Yellow(mA) 100 100 100(V) 10(V)

Derating (Operating temperature)(over 25℃ working temperature) (mA/℃)
Pulse Width PW （μs）
Pulse
Lighting Duty Ratio DR（mA）
Allowable forward current IFP

3.6

50

50

50

25

25

25

10

20

20

20

40

40

40

4.4 4.2

7.2

8.8

8.4 14.4 17.6 16.8

10

1.6

0.8

0.4
100
10 － 1
100

VDD

VF

VDD
R

IF

R

IF

Refer to the following formula
to calculate external resistance values.

R＝

VDD－V FIFVDD ：Supply Voltage
VF ：Forward Voltage
I F ：Forward Current

IF (Forward Current) :Refer to the Rated Current of BUILT-IN RESISTOR type,and be sure to set less than IFM (Max. Forward Current).

For resistance value calculation
https://www.sunmulon.co.jp/english/products/led.html
The resistance value can be calculated just by entering the items.

Sunmulon Co., Ltd.

YH-13

LED SPECIFICATIONS 【2-Split-Face】● BUILT-IN RESISTOR
Voltage
DC 5V
DC 12VDC 24V±5%

Rated Current (mA)
Red

Green

Yellow

20

30

34

10

15

17

10

15

17

±5%
±5%

● NON-RESISTOR (EXTERNAL RESISTOR)
DC5 V

Supply Voltage
LED Color● Wiring Diagram

DC12V・24V

Red Green Yellow Red Green Yellow

Max. Forward Current IFM(mA) 50

50

50

25

25

25

DC Reverse Voltage VR(V) 10

10

10

20

20

20

Forward Voltage【IF=20mA】
V F（Typ.）(V)

Derating (Operating temperature)(over 25℃ working temperature) (mA/℃)
Pulse Width PW （μs）
Pulse
Lighting Duty Ratio DR（mA）
Allowable forward current IFP

3.6

4.4
0.8

4.2

7.2

8.8

VDD

100
10 － 1
100

R

IF

R

IF

8.4

0.4

VF

VDD

Refer to the following formula
to calculate external resistance values.

R＝

VDD－V FIFVDD ：Supply Voltage
VF ：Forward Voltage
I F ：Forward Current

IF (Forward Current) :Refer to the Rated Current of BUILT-IN RESISTOR type,and be sure to set less than IFM (Max. Forward Current).

For resistance value calculation
https://www.sunmulon.co.jp/english/products/led.html
The resistance value can be calculated just by entering the items.

Sunmulon Co., Ltd.

YH-14

TERMINALS／PCB HOLE CUTOUT● TERMINALS LAYOUT (BOTTOM VIEW)
SPDT

DPDT

INDICATOR

Sunmulon markSunmulon markSunmulon mark

NO
NC

C

C

C

● TERMINALS DIMENSIONS (BOTTOM VIEW)

7.62 7.62

φ1.2 H 0.9

7.62 7.62

SPDT

φ1.2 H 0.9

Sunmulon markSunmulon mark7.62±0.1 7.62±0.1

7.62±0.1 7.62±0.1

SPDT

DPDT

DPDT

※ Actually, the terminal function letters are upside down. (e.g. NC →10φ1.22.54±0.1

COM

5.08 ±0.1 7.62±0.1

NC

COM

10.16 ±0.1 10.16±0.1

5.08
NO

NC

10.16

L2

NO

11
5.08 5.08

5.08

10.16

L2

2.54

11
5.08 5.08

COM

LC

NC

NC

LC

7φ1.2

L1

NO

LC

L1

LC

Sunmulon mark2.54

Sunmulon mark

● PCB hole cut-out (TOP VIEW)

2.54±0.1

NC

10.16 ±0.1 10.16±0.1
5.08 ±0.1 7.62±0.1

NC

LC
L2

L2

L2

NO

LC

L1

NO

LC

L1

LC

LC

L1

LC

)

1.2

4

7.5

2

5.9

0.7

TERMINAL SHAPE

0.5

2.8

2.8

♯110 Tab・Soldering Terminal

1

0.5

PCB Terminal

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

YH-15

MOUNTING DESIGN／PANEL CUTOUT
Mounting design

Panel cutout

Without Barriers

Individual

Recommended panel thickness : 1 to 5 mm

Multiplen : Number of UnitsWith Barriers

Individual

Recommended panel thickness : 1 to 5 mm

Multiplen : Number of Units

Individual

Recommended panel thickness : 1 to 4.3 mm

With Guard cover

The centerline is the center of the button.

Multiplen : Number of Units※ If the panel is to be finished (e.g. coated), make sure that the panel meets the specified dimensions after the coating.
In case the panel cut dimension is too small, it may cause malfunction.
※ After the panel-cutting process, make sure to remove burrs on the surface.

● Panel cut spacing dimensions for spaced individual mounting
more than 6 mm

more than 3 mm

With Barriers
more than 6 mm

more than 3 mm

With Flange

Tolerance：±0.4 mm

Sunmulon Co., Ltd.

YH-16

ACCESSORIESBARRIER
Color

Side barrierBlack

WH-0740-K

Center barrier
WH-0741-K

Gray

WH-0740-G

WH-0741-G※ Cannot be used with guard cover.

3D
DXF

Side barrier

Center barrier

GUARD COVER
Black

YH-2576-K

Gray

YH-2576-H※ The cover to be opened 180°and returnedby spring force.
※ Cannot be used with barrier.

3D
DXF

3D・DXF data download site ： https://www.sunmulon.co.jp/download/

Tolerance：±0.4 mm

Sunmulon Co., Ltd.

YH-17

ASSEMBLY & DISASSEMBLY
1. Removing Light cartridge

2. Removing Button
Remove the part A by pushing it open.

Be sure to remove with the removing tool (SJ-0001).
Hang the cartridge with the removing tool in the groove,and pull it straight out.

A

※ In case removing in any other way than the above,it may cause damage to the light cartridge.

※ Do not touch the other parts such as spring incorporated
in the light cartridge.

3. Fitting Filter

Do not reuse buttons that have been removed and deformed.

4. Fitting Button

Place the filter with the flat face upward
on to the LED unit, then put button on it.

Align the groove on the button, the projection
on the LED unit, and fit the button until click.
GrooveProjection

Flat
Flat
face
face

Full-Face

Flat face

2-Split-Face※ If it is not fitted correctly, it may cause malfunction.

5. Fitting Light cartridge

6. Installing Guard CoverAlign the light cartridge with the housing with correct direction
as shown in the drawing below and push in until click.

Align the guard cover with the flange of housing, and fit it until click.
And then, insert it into the panel cut-out.

FlangeProjection

Groove7. Installing Barriers① Side Barriers
After setting the side barriers on the sides of the housing,insert it into the panel cut-out.

①②② Center Barriers
Insert the center barrier between the switches after mounting
the switches with the side barriers into the panel cut-out.

Sunmulon Co., Ltd.

①

YH-18

PRECAUTIONS FOR CORRECT USE
1. Solder quickly and correctly at 380℃ max. and for 3 seconds or less.
Be careful not to touch the soldering iron to the main body.
2. Wait for one minute during and after soldering before exerting any external force on the solder.
3. The rated voltage is shown on the side of the LED unit, so be sure before use.

4. Character films are not included.
If preparing the character film separately, use a heat-resistant film with a thickness of 0.1 mm.
For dimensions, please refer to the figure below.

※ For handling instructions and precautions other than the above, please refer to “Safety Precautions for All IlluminatedPushbutton Switches”.

Tolerance : ± 0.4 mm
As of July 2023

Sunmulon Co., Ltd.

YH-19

Safety Precautions for All Illuminted Pushbutton Switches
1. Notes on contents of Catalogs(1) Rated values, performance values, and specification values of Sumulon products listed in this catalog are values acquired under respective conditionsin independent testing, and do not guarantee values gained in combined conditions.
(2) The ambient operating temperature(humidity) is guaranteed by evaluation based on characteristics, and does not guarantee continuous use for a long
period of time near the upper or lower limit of the ambient operating temperature(humidity) or permanent use at that temperature(humidity).
(3) Reference data and reference values listed in catalogs are for reference purposes only, and do not guarantee that the product will always operate
appropriately in that range.
(4) The specifications / appearance and accessories of Sunmulon products listed in catalogs are subject to change or termination of sales without notice,for improvemnet or other reasons.
(5) The content of catalogs is subject to change without notice.

2. Note on applications(1) If using Sunmulon products in combination with other products, confirm the following suitability by yourself. Sunmulon shall provide no guarantees
regarding the combination suitability.
(a) Regulations, satndards, or laws to which your machinery, equipment, ect. must conform(b) Functionality and safety of your machinery and equipment(2) Wiring and installation that ensures the Sunmulon product used in your system, machine, device, or the like can perform and function according to
its specifications.
(3) When using Sunmulon products, be cautious when implementing the following.
(a) Use of Sunmulon products with sufficient allowance for rating and performance.
(b) Safety design, including redundant design and malfunction prevention design that prevents other danger and damage even in the event that
Sumulon product fails.
(4) Sunmulon products are designed and manufactured as general-purpose products for general industrial products. They are not intended for use
in the following applications, and in the event that you use Sunmulon product for these applications, unless otherwise agreed upon between you
and Sunmulon, Sunmulon shall provide no guarantees whatsoever regarding Sunmulon products.
(a) Safety devices intended for human body protection(b) Direct control of transport equipmnt (railroads / airplanes / ships / vehicles / vehicle instruments, etc.)(c) Space equipment, submarine equipment(d) Nuclear power control equipment, radiation related equipment(e) Combustion equipment, electric heat equipment(f) Disaster prevention and security equipment(g) Elevating equipment(h) Amusement facilities(i) Facilities subject to government or industry regulations(j) Use in applications that require a high degree of safety, any other equipment, instruments, or the like that could endanger life or human health

3. Warranty(1) The warranty period for Sunmulon products shall be 1 year after purchase or delivery to the specified location.
(2) Warranty scope should a failure occur in Sunmulon product during the above warranty period for reasons attributable to Sunmulon, then Sunmulon shallprovide that product, free of charge, the same quantity. Further, in no event shall liability of Sunmulon exceed the individual price of the product onwhich liability is asserted.
(3) Failures cause by the following reasons shall be deemed outside the scope of this warranty.
(a) The product was handled or used deviating from conditions / environment listed in the catalogs(b) The failure was caused by reasons other than Sunmulon product(c) Modification or repair was performed by a party other than Sunmulon(d) Replacement of maintenance parts, installation of accessories, or the like was not performed properly in accordance with the user’s manual andcatalogs(e) The failure could not have been predicted with the scientific and technical standards at the time when the product was shipped from Sunmulon(f) The failure was due to other causes not attributable to Sunmulon (including cases of force majeure such as natural disasters and other disasters)(4) The warranty listed in this Safety Precautions is the full and complete warranty for Sunmulon products, and Sunmulon shall bear no liability whatsoever
regarding special damages, indirect damages, incidental damages, or passive damages that occurred due to Sunmulon product.

4. Handling precautions for switch(1) Do not perform wiring with power supplied to the switch. Do not touch the terminals or other charged parts of the switch while power is being supplied.
Doing so may result in electric shock.
(2) Be careful of electrostatic breakdown when handling.
(3) Do not drop or otherwise apply strong force to the switch.
(4) Do not place heavy objects on the switch.
(5) Do not operate or use the housing (switch unit) by itself. Use the switch with assembled the illuminated part (LED module or button).
(6) Pushbutton switches are designed to be operated by fingertips. Operating the switch using a sharp object (screwdrivers, tweezers, etc.), hard object(metal, etc.), or with a large or sudden force, may cause deform or damage the switch.
(7) Do not use the switch under loads that exceed the rated switching capacity or other contact ratings. Doing so may result in welding of the contact,or burnout accidents.

Sunmulon Co., Ltd.

PRECAUTION-1

Safety Precautions for All Illuminted Pushbutton Switches(8) For inductive load, the arc by back EMF may cause contact failure. Insertion of arc prevention circuit as the following is recommended.
Circuit

Element selection

Diode

L

C

R

Circuit

Element selection

The diode must withstand a peakinverse voltage 4 times higher thanthe power supply voltage and regarding
a forward current must as high or higher
than the load current.

L

C：1 to 0.5 μF × switch current (A)R：0.5 to 1 Ω × switch voltage (V)DCDC

The values may change according to
the characteristics of the load.
Determine ideal capacitance andresistance values through testing.
R

ZNR
Varistor

L

C
AC, DCL

Use a varistor that can withstandthe power supply voltage sufficiently.
(1.5 times or more)

AC, DC(9) Following circuits show examples of an anti-chattering circuit.
VDD

VDD

R

R1

VOUT
SW

R2
VOUT

C

SW

R
VDD

(10) Illumination(a) Do not apply a voltage between the LED terminal that is greater than the rated voltage. Doing so may damage the LED, cause lighting failure.
(b) LEDs cannot be lit directly by AC circuit should be provided rectifier smoothing circuit for products other than AC input type.

Correct

Incorrect
R
DC

AC

R
LED

LED

AC

(c) When wiring, pay attention to the polarity of the terminals.
(d) Simultaneous lighting may not be possible with Dual-Color illumination or Split-Face illumination (2, 3, or 4 split illumination), check the catalog.
(e) Apply voltage directly to LEDs of Non-built-in resistor type will damage the LEDs, so connect an appropriate external resistor.

(11) Wiring(a) Do not apply a soldering iron to the switch housing. Doing so may deform the terminals and cause defects.
(b) See catalog for models compatible with flux prevention measures terminal. Be careful not to allow flux to panetrate sliding parts such as buttons.
Use non-corrosive rosin solution as flux for dip soldering.
(c) For soldering other than flux-preventive models, hand solder with the terminals facing down to prevent flux from penetrating into the switch.

Correct

Incorrect(d) The housing of KA, K2, and K9 series are designed for reflow soldering.
(e) Use the appropriate wire size for the applied voltage and current, and solder properly. Use of the product with incomplete soldering may cause
abnormal heat generation, resulting in a fire hazard.
(f) After wiring is completed, maintain an appropriate insulation distance.

Sunmulon Co., Ltd.

PRECAUTION-2

Safety Precautions for All Illuminted Pushbutton Switches(12) Usage environment(a) Do not use in the presence of flammable or explosive gases such as gasoline, thinner, LPG, etc.
(b) Avoid using the product in places where corrosive or silicon gas is generated, high temperature, high humidity, sea breeze or direct sunlight.
(c) Provide appropriate protection when using the product in places where it is exposed to water, oil, metal powder, or dust.
(d) Do not use the product in a place subject to vibration or shock. It may cause malfunction or damage.
(e) When installed in a close grouping or continuously lit, the ambient temperature may exceed the specified value due to heat generation.
Take measures such as ventilation and lowering the operating voltage.
(f) When checking the actual equipment, load conditions and operating environment should be the same as the actual operating conditions.
(g) The ambient temperature for storage is －25℃ to 65 ℃ (No freeze, no condensation).

(13) When wiping off dirt on the exterior of the switch and accessories such as side plates, wipe lightly with a soft, dry cloth. Organic solvents such as
thinner, benzene, alcohol, or other acidic chemicals may cause deformation, discoloration, or malfunction.
(14) Store the product away from malignant gases, dust, high temperature and high humidity, and keep it in our packing condition.
(15) When removing the illuminated part (or button) from the alternate switch housing, switch state should be in a free state.

Correct

Incorrect

Removal in a locked state may cause malfunction or damage
to alternate switch.

Illuminated part
(Button)Free state

Locked state(16) Periodic inspection and replacement(a) Although mechanical and electrical durability are listed in the specifications column, deterioration of various parts (deterioration of resins andcorrosion of metal parts) is possible due to the operating environment and method of use. We ask that you implement inspections for Sunmulon
products to prevent accidents from occurring by conducting periodic inspections and replacements.
(b) When the switch is left unused or stored for long periods, contact reliability may deteriorate due to oxidation of contacts, which may cause continuity
failure, etc. Therefore, it is necessary to check the operation before use.

(17) Service scope
The price of Sunmulon products do not include the cost of services, such as dispatching technicians.

Sunmulon Co., Ltd.

PRECAUTION-3