DHDH Illuminated Pushbutton Switch
Only 21.5 mm depth behind panel.
■ Depth behind panel：Only 21.5 mm■ LED Full-Face, Non-illumination available.
■ Terminal：#110 Tab・Soldering■ Accessories：Barriers, Guard cover, Dust-Proof coverNC
Switchconnection

C
NO

CHARACTERISTICS
Square：□14.2 mm

Button Size

Silver contact (Gold-plated)
AC 125 V 3 A
AC 250 V 3 A

Rating (Resistive Load)
Insulation ResistanceMore than 100 MΩ at DC 500 V
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

Dielectric Strength

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

Vibration ResistanceMechanicalLife

Round：φ20.2 mm

Silver contact

Contact Material

Momentary
AlternateElectrical Life (Resistive Load)Less than 50 mΩ (Initial value)by milliohmmeter
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

4.41N

max.

Total Travel

3mm

max.

WeightAmbient Operating Temperature
Ambient Operating Humidity
Ambient Storage Temperature
Ambient Storage Humidity

Square：9 g

Round：11 g－15℃ to 50℃（No Freeze, No Condensation）
80%RH max. （No Condensation）－25℃ to 65℃（No Freeze, No Condensation）
80%RH max. （No Condensation）

https://www.sunmulon.co.jp/english/products/switch_e/dh.html◇Dimensions：page DH-2
◇Internal connection arrangements：page DH-7
◇Mounting design / Panel cutout：page DH-9

◇Accessories：page DH-3
◇LED specifications：page DH-7

Sunmulon Co., Ltd.

◇Ordering code：page DH-4～5◇Terminals：page DH-8

DH-1

CONTACT RATINGS

SPECIFICATIONS
Illumination
type
Contact
Terminal

Round

A

N/A

Full-Face
Non-illumination

A

A

SPDT

A

A

DPDT

A

A

#110 Tab
SolderingA

A

RoHS（10 Substances)
A : Applicable

Square● Silver contact
Voltage

Current (A)(Resistive load)

AC 125 V
250 V

3
3

● Silver contact (Gold-plated)

Conform to standards

N/A : Not applicable

Voltage

Current (A)(Resistive load)

AC 125 V
250 V

3
3

DIMENSIONS● With Flange
Square

□18.8
□14.2

29
21.5

23

MULON mark（Sunmulon mark）

TOP VIEW

□16.8

3D
DXF

Round
MULON mark

29
21.5

23

φ26.7
φ20.2

TOP VIEW
φ23.7

3D
DXF

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

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

DH-2

ILLUMINATION TYPES
LED color symbol

70

Red

80 Green

90 Yellow※ Yellow (90) is actually “ORANGE Yellow” not Lemon Yellow.

Full-Face

70

80

90

ACCESSORIESNameBarrier

Appearance

Classification
Center barrierPart no.
Black

Precautions for use

DH-324-B- Cannot be used with guard cover anddust proof cover.

3D
DXF

Side barrierBlack

DH-323-B

Center barrierfor Guard coverBlack

DH-443-B

Side barrierfor Guard cover- Use with guard cover as a set.
- Cannot be used with dust proof cover.
Black

DH-442-B

Guard cover
3D

For square button

DH-450- Use with barrires for guard cover as a set.
- The cover to be opened 180°and returnedby spring force.

For square button

DH-361- Cannot be used with barriers and guard
cover.

For removal button

SJ-0001- Be used to remove button from housing.

DXF

Dust proof cover
3D
DXF

Removing tool

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

Sunmulon Co., Ltd.

DH-3

FH

ORDERING CODE 【Full-Face】
FH形・スーパーFH形
Square Button
照光式押しボタンスイッチ
DHS● OPERATIONL● FILTER COLOR

Indicator

1

Red

3

Yellow

4

Green

5

Milk-white

Blank

Without filter

M Momentary■本体奥行：16mmの短胴構造です。コネクタタイプは23mm。

A Alternate■照光部
LEDの照光方式は全面単色、全面2色、2分割照光を実現。保護抵抗は内蔵で● CONTACTす。照光部はパネル前面より交換可能です。
ボタン形状は13.2角、13.2×19.4長四角ボタンと本体、照光部同一サイズの0 Indicator
プリント基板専用の16角ボタンの3種類があります。
1 SPDT・Silver
13.2角、13.2×19.4長四角ボタンには操作性のよいディンプルボタンも用意
2 DPDT・Silver
しました。
3

Filters cannot be used forbuttons other than clear button.

SPDT・Silver (Gold-Plated)■スイッチ部
4 DPDT・Silver (Gold-Plated)
コイルスプリングを使ったマイクロスイッチ機構を採用．長寿命，軽快なタッチ感、高信頼性が得られます。
● BUTTON COLOR● BUTTON SHAPE■アクセサリー連結取付用バリヤー、ガードカバー、ソケット、マトリックス取付金具。
S Square● LED COLOR
70

Red

80

Green

90

Yellow※1)

For protecting LED,use external protective resistor.

製

品

仕

※1)

R

Red

Y

Yellow

G

Green

M

Milk-white

C

Clear

X

Without button● HOUSING COLOR
Black

B

※1)

接触形式

NC
C
NO

様

● NOTES※1) The color of “Yellow” for LED (90) , button (Y) and filter (3) is actually “Orange Yellow” not Lemon Yellow.

◇Dimensions：page DH-2
◇Internal connection arrangements：page DH-7
◇Mounting design / Panel cutout：page DH-9

◇Accessories：page DH-3
◇LED specifications：page DH-7

Sunmulon Co.,
Co., Ltd.
Ltd.
Sunmulon◇Terminals：page DH-8

DH-4

ORDERING CODE 【Non-illumination】
FH形・スーパーFH形
Square Button
照光式押しボタンスイッチ
Round Button
DH● OPERATIONL

FH● FILTER COLOR

Indicator

1

Red

3

Yellow

4

Green

5

Milk-white

Blank

Without filter

M Momentary■本体奥行：16mmの短胴構造です。コネクタタイプは23mm。

A Alternate■照光部
LEDの照光方式は全面単色、全面2色、2分割照光を実現。保護抵抗は内蔵で● CONTACTす。照光部はパネル前面より交換可能です。
ボタン形状は13.2角、13.2×19.4長四角ボタンと本体、照光部同一サイズの0 Indicator
プリント基板専用の16角ボタンの3種類があります。
1 SPDT・Silver
13.2角、13.2×19.4長四角ボタンには操作性のよいディンプルボタンも用意
2 DPDT・Silver
しました。
3

Filters cannot be used forbuttons other than clear button.

SPDT・Silver (Gold-Plated)■スイッチ部
4 DPDT・Silver (Gold-Plated)
コイルスプリングを使ったマイクロスイッチ機構を採用．長寿命，軽快なタッチ感、高信頼性が得られます。
● BUTTON COLOR● BUTTON SHAPE■アクセサリー連結取付用バリヤー、ガードカバー、ソケット、マトリックス取付金具。
S SquareR

Round● ILLUMINATION TERMINAL
Blank WIthout terminal
0With terminal

製

品

仕

※1)

R

Red

Y

Yellow

G

Green

K

Black

M

Milk-white

C

Clear

X

Without button● HOUSING COLOR
Black

B

※1)

接触形式

NC
C
NO

様

Clear button cannot be specified
for Round button.

● NOTES※1) The color of “Yellow” for button (Y) and filter (3) is actually “Lemon Yellow” for Non-illumination.

◇Dimensions：page DH-2
◇Internal connection arrangements：page DH-7
◇Mounting design / Panel cutout：page DH-9

◇Accessories：page DH-3
◇LED specifications：page DH-7

Sunmulon Co.,
Co., Ltd.
Ltd.
Sunmulon◇Terminals：page DH-8

DH-5

REPLACEMENT PARTS● Full-Face BUTTON／FILTER
Red

Green

Yellow

Milk-white

Clear

BUTTON

SquareDH-336-1LR

DH-336-1LG

DH-336-1LY

DH-336-1M

DH-336-2C

FILTER

SquareDH-339-LR

DH-339-LG

DH-339-LY

DH-339-M※ Filters cannot be incorporated into buttons other than the Clear button, so use the Clear button when using filters.

● Non-illumination BUTTON／FILTERRed

BUTTONFILTER

Green

YellowBlack

Milk-white

Clear
DH-336-2C

SquareDH-336-1R

DH-336-1G

DH-336-1Y

DH-336-1K

DH-336-1M

Round

DH-298-R

DH-298-G

DH-298-Y

DH-298-K

DH-298-M

SquareDH-339-R

DH-339-G

DH-339-Y

DH-339-M※ Filters cannot be incorporated into buttons other than the Clear button, so use the Clear button when using filters.
※ Black button do not transmit light.
※ The yellow button and filter for Non-illumination is Lemon Yellow.

FILTER DIMENSIONS

1.65□12.15LEGEND
FACE

0.15

11.85

Blasting surface

DH-339Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

DH-6

INTERNAL CONNECTION ARRANGEMENTS● Full-Face
TOP VIEW MULON mark（Sunmulon mark）

BOTTOM VIEW

L
L（＋）

LED SPECIFICATIONS 【Full-Face】
Color

Item

Max. Forward Current IFM
VR（V）

Pulse Width PW（μs）

DC Reverse Voltage
Forward Voltage
Pulse
Lighting

（mA）

Red

Green

Yellow

40

40

40

10

10

10

4.2

4

【IF＝20mA】（V）
VF（Typ.）Duty Ratio DR

4

100

IF

VDD

R

VF

－1

10

（mA）

IFM

● Wiring Diagram

100
Refer to the following formula
to calculate external resistance values.

● Reference external resistor
Since LED protection resistors are not built-in, connect resistors in series referring to the table below.

Voltage

DC 5V
DC12V
DC24V

Color

±5％
±5％
±5％

Reference forward
current（mA）

Red

Green

Yellow100Ω1/8W

33Ω1/8W

100Ω1/8W

620Ω1/4W

330Ω1/4W

620Ω1/4W

1500Ω1/2W

820Ω1/2W

1500Ω1/2W

15

25

15

R＝

VDD－ VFIFVDD：Supply Voltage
VF ：Forward Voltage
IF ：Forward Current
IF (Forward Current) :Refer to the Rated Current in the tableon the left, 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.

DH-7

TERMINALS● TERMINALS LAYOUT（BOTTOM VIEW）
SPDT

DPDT

INDICATORMULON mark（Sunmulon mark）

MULON mark（Sunmulon mark）

MULON mark（Sunmulon mark）

C

NC NO

C

NC NO

L

L（＋）

L

L（＋）

C

NC NO

L

（＋）
L

※ Non-illumination type can be selected with or without terminals（L, L（＋））by ordering code.

● TERMINALS DIMENSION（BOTTOM VIEW）

NC
L

MULON mark（Sunmulon mark）

NO
L
（＋）

6.3
0.25

5

MULON mark（Sunmulon mark）

C

NC
L

NO
L（＋）

C

NC

NO

9.5

9.5

SPDT

DPDT

2

7.5

TERMINAL SHAPE

5.9±0.1C5

5.2 5.2

5.2

6.3
0.25

1.2

0.5

2.8

#110 Tab・Soldering Termial

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

DH-8

MOUNTING DESIGN／PANEL CUTOUT● SquareMounting design

Panel cutout

Individual

17.1 ＋0.15
－0.1

18.8

Multiple＋0.15
17.1＋18.8（n－1）
－0.1

18.8

Without Barriers

18.8

Recommended panel thickness : 1 to 3.2 mm

18.8n

n : Number of Units

Individual

17.1 ＋0.15
－0.1

24.1

＋0.15
22.4＋19.6（n－1）－0.1

Multiple
20

With Barriers

20

Recommended panel thickness : 1 to 3.2 mm※ Panel cut dimensions when guard covers are used
are also the above dimensions.
24.1＋19.6（n－1）

n : 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.

● Round（Non-illumination type only）
Mounting design

Panel cutout

Min. 26.7

Min. 26.7

MULON markMin. 26.7

Min. 26.7

22.5°
22.5°
R2

R12.7

＋0.2
0

φ24 ＋0.15－0.1Min. 26.7

Min. 26.7● Panel cut spacing dimensions for spaced individual mounting
With Flange

shown in brackets.

0.9

more than 3 mm

more than 6 mm

For vertical individual, the dimensions are

more than 6 mm
(more than 3 mm)

The figures are all for horizontal individual.

With Barriers
more than 3 mm (more than 6 mm)

Tolerance : ± 0.4 mm

Sunmulon Co.,
Co., Ltd.
Ltd.
Sunmulon

DH-9

ACCESSORIESBARRIER

20

ColorSide barrier

Center barrierBlack

DH-323-B

DH-324-B

20

5
4.6

※ Cannot be used with guard cover.

26.5

16.8

16.8

Side barrier

Center barrier

3D
DXF

5
4.6

26.5

BARRIER for GUARD COVER
ColorSide barrier

Center barrierBlack

DH-442-B

DH-443-B

22

22
7
4.8

※ Use as a set with the guard cover.

28.5

25

16.8

16.8

Side barrier

Center barrier

3D
DXF

3.5
4.6

GUARD COVER used with BARRIERSPart no.

DH-4503.5※ Use as a set with the barrier for guard cover.
※ The cover to be opened 180°and returned by spring force.

24

19

.5

3D
DXF

SquareDust-Proof CoverPart no.

DH-361※ Cannot be used with barriers and guard cover.
9

.9

4.8

17.1 ＋0.15
－0.1

24

3D

17.1＋0.15
－0.1

DXF

Square3D・DXF data download site ： https://www.sunmulon.co.jp/download/

Sunmulon Co., Ltd.

Panel cutout

24.

Recommended panel thickness : 1 to 2.5 mm

Tolerance : ± 0.4 mm

DH-10

ASSEMBLY & DISASSEMBLY
1．Removing Button

2．Installing Dust-Proof CoverBe sure to remove with the removing tool (SJ-0001).
Hang the button with the removing tool in the groove,and pull it straight out.

Put the switch through the cover frame (A), and mounton the panel. Afterwards press cover (B) into the groove ofcover frame (A) from above and install it.

Cover (B)Cover (A)※ In case removing in any other way than the above,it may cause damage to light cartridge.
※ Do not reuse buttons that have been removed and deformed.

3．Installing Barriers

Installing Barriers (Multiple)

After setting the side barriers on the housing, and insert it
into the panel cut-out.

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

Sunmulon Co., Ltd.

DH-11

PRECAUTIONS FOR CORRECT USE
2. Wait for one minute during and after soldering before exerting any external force on the solder.
3. Character films are not included.
If preparing the character film separately, use a heat-resistant film with a thicknessof 0.1 mm. For the dimensions, please refer to the figure on the right.

0□11.8 －0.2

1. Solder quickly and correctly at 380℃ max. and 3 seconds or less. Be careful not to touch the soldering iron to the main body.

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

Tolerance：± 0.4 mm
As of September 2024

Sunmulon Co., Ltd.

DH-12

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