BD

BD 7-Segment Display
Easy display with BCD codes.
■ Digit display：14.6-mm-high characters, displayed by BCD codes.
■ Illumination color：Red, Green■ Mounting：One-touch easy mounting with side plates.
■ Unit type：NUMERICAL unit, CHARACTER unit
■ Terminal：Connector (Selling separately)■ Accessories：Blank unit, Motherboard

CHARACTERISTICSBLOCK DIAGRAM

14.6 mm+5 V

Red, Green

VDD

Outer Dimension

H28 mm×W15 mm×D45 mm (1 unit)

GND

8 digits

Max. Digits
Supply Voltage
Consumption Current

DC5 V ±5％

DC12 V，24 V ±10％65 mA max. (1 unit)

Display Method

Decimal system

Control Method

BCD codes (Positive Logic, Negative Logic)

Data Input Method

TTL input

High Level Input Voltage

3.5 to 5 V

Low Level Input Voltage

0 to 1.5 V

Terminal ShapeMIL connector (10 pins)

Ambient Operating Temperature－15℃ to 50℃ （No Freeze, No Condensation）

Ambient Operating Humidity

80%RH max.

（No Condensation）

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

Ambient Storage Humidity

80%RH max.

RoHS（10 Substances）

A
B
C
D
LE
BI
DP
Vacancy

Constant voltage circuit

Decoder driver

Illumination Color

Input circuit

Character Height

NUMERICAL unit

※ DC 5 V input type does not have a built-in constant voltage circuit.
Please refer to page BD-4 for internal connection arrangements of
NUMERICAL unit (Without circuit) and CHARACTER unit.

（No Condensation）

Conform to standards

https://www.sunmulon.co.jp/english/products/display_e/bd.html◇Dimensions / Panel cutout ：page BD-2
◇CHARACTER unit ：page BD-4
◇Accessories’ dimensions：page BD-6～7◇NUMERICAL unit (With circuit) ：page BD-3
◇Ordering code：page BD-5
◇Reference wiring diagram：page BD-8

Sunmulon Co., Ltd.

◇NUMERICAL unit (Without circuit) ：page BD-4
◇Terminals：page BD-6

BD-1

DIMENSIONS／PANEL CUTOUT

25

28

14.6

Sunmulon mark24＋15（n－1）

Panel cutout dimension

40

42

25.5 ＋0.15
－0.1

3

15

22＋15（n－1）＋0.15－0.1

Recommended panel thickness : 1 to 4 mm
n : Number of Units
21＋15
（n－1）

※ Up to 8 units can be connected in series.
※ Blank unit also has the same dimensions.

※ 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.

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

BD-2

SPECIFICATIONS【NUMERICAL UNIT】With circuit● Input Circuit and Connection● Input Timing
PW＋5V● BCD Data
(A～D)

4.7KΩ

● Latch input(LE)

Sink current
2 mA MAX
Output circuit (user side)

PW≧1mS

Latch

Input circuit (BD)Through

t1

t2

Latch

t3

t1≧0.25mS
t2≧0.5mS
t3≧0.25mS※ Since internal circuit is operated with +5 V, user side output should beOpen Collector Circuit, or less than +5 V impression circuit.
※ While power is not supplied in the unit, even low voltage not to be impressedon the input circuit.

● BCD Signals Truth Table● Terminals Function Table

Input

Output

Pin
No.

Mark

Description

1

VDD

Power supply

2

A

（L） （
（
L H） （L H） H
L H）

3

B

4

C

L H）
（
L H） H（L）（
L H） （

5

D

DP

BI

LE

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

X

H

L

H
（L） H
（L） H
（L） H
（L）

L

X

X

X

X

X

X

D

C

B

A

（
L H） （L H）（
L H）
L H） （BCD（
L H） （L H）（
L H） H（L）（L） H（
L H） （L H） H（L）

Data input（
L H） H（L）（L）（
L H） H（
L H） H
（L） H
（L）
（L） H

6

H
（L） （
L H）
L H）（
L H） （LE

Latch input

L H）
L H） （
（L）（
H
（L） H

L H） H
（L）
（L）（
H
（L） H
（L） （
L H）
（L） H
H
（L） H

Indicate figures and symbols according todata signal input of the BCD code.
Please see the truth table.

Blank
Blank
Blank
Blank
Blank
Blank

X

L

X

X

X

X

X

Blank

X

X

H

X

X

X

X

A through D data before H is retained.

When controlling without using a latch,connect to GND.
Note : Always use either control method.
No display and no change will be madeif there is no connection.

H
（L） （
L H）（
L H） H（L）
L H） H
（L） H
H
（L） （
（L）

Power input

If controlled using a latch,“H : Data Retention” and “L : Data Read”.

（
L H） H
L H）
（L） H
（L） （

H
（L） （
（L） （
L H） H
L H）

Functions

7BIBlanking input“L” makes display `OFF’ except Decimal point.

8DP

Decimal input“L” makes Decimal point `ON’.

9
10

GND Ground

Power input.
Electrical potential norm of all signals.

※ Either H or L is acceptable for X.
※ ( ) = Negative Logic※ All inputs are pulled up internally, so opened H is acceptable.

Sunmulon Co., Ltd.

BD-3

SPECIFICATIONS【NUMERICAL UNIT】Without circuit● Internal Connection Arrangements
Terminal No.
a
1
b
2
f
3
g
5
c
6
e
7
8
9
4

a
f

b

g

c

e

DP
d

d

DP

COM

● LED Specifications
Absolute Maximum Rating
LED Color
DC Forward Current IF /seg (mA)
Pulse Width PW (μs)
Pulse
Duty Ratio DR
Lighting
Forward Current IFP/seg (mA)
DC Reverse Voltage VR
(V)

Red
20

110
6

Green
20
1
1/10

110
6

Electrical / Optical PerformanceRed

LED Color
Forward Voltage VF【IF=10mA】 (V)

Green

2.0

2.1

100 max.

100 max.

Luminous Intensity / Segment IV (mcd)14

22

Peak Radiation Wavelength λP (nm)

650

563

Δλ(nm)

40

40

(μA)

Reverse Current IR

Spectral Half-width※ The above are characteristics of the LED element, so differ slightly from the actual product.

SPECIFICATIONS【CHARACTER UNIT】● Terminals Function Table
Pin
No.

Mono Color

1

Anode (＋)● Internal Connection Arrangements
VoltagePin No.

1

DC 5V

2
3

6

4
5
6
7

Pin No.

Cathode (－)

1

DC12V
DC24V

8

6

9
10

● LED Specifications
Voltage
DC 5V
DC12V
DC24V

±5%

±5%

±5%

Sunmulon Co., Ltd.

Rated Current (mA)

Red

Green

40

40

20

20

20

20

BD-4

ORDERING CODEBD BN

NUMERICAL unit
(With circuit)● DISPLAY
BN● SUPPLY VOLTAGE

NUMERICAL unit (With circuit)● BCD CODE LOGIC※ Side plates to be orderedseparately.

1

Positive

2

Negative

DC 5V

2

DC12V

3

DC24V

● LED COLORBDNUMERICAL unit
(Without circuit)

R

Red

G

Green

E1
● LED COLOR● DISPLAY
E

1

NUMERICAL unit (Without circuit)

R

Red

G

Green

● POLARITY
1

Cathode common※ Side plates to be orderedseparately.

CHARACTER unit

This unit displays any engraved characters.

BD

D0● LEGEND PLATE● DISPLAY
D※ Side plates to be orderedseparately.
※ Custom legend plate canbe made. Engraving isavailable separately.

CHARACTER unit

● DISPLAY TYPE
0

Full-Face● LED COLOR
R

Red

G

Green

◇Dimensions / Panel cutout ：page BD-2
◇CHARACTER unit ：page BD-4
◇Reference wiring diagram：page BD-8

◇NUMERICAL unit (With circuit) ：page BD-3
◇Terminals：page BD-6

Sunmulon Co., Ltd.

A

With legend plate

B

Without legend plate● SUPPLY VOLTAGE
1

DC 5V

2

DC12V

3

DC24V

◇NUMERICAL unit (Without circuit) ：page BD-4
◇Accessories’ dimensions：page BD-6～7

BD-5

TERMINALS● TERMINALS DIMENSIONS● TERMINAL SHAPE【Applicable connectors】

1

OMRON madeXG4M-1030 (Socket)

HRS made

HIF3B-10D-2.54R

XG4T-1004 (Strain Relief)

2

6

10.16

2.54

Sunmulon mark

9 10

2.54

※ We do not sell the above products.
For more information, please refer to thesemanufacturers’ catalogs.

□0.635

5.73

ACCESSORIES／REPLACEMENT PARTS
Part no.

3● SIDE PLATE
BD-0206-K

40※ A pair of side plate (right and left) is necessary for mounting on panel.
（This part no. is a set of right and left.）※ Available in Black only.

25● BLANK UNIT
Part no.

BD-0207-SR

Semitransparent Red

BD-0207-SG

Semitransparent Green

Sunmulon mark28

25

※ This unit is used when blanks are needed between digits.

15

40

3

● LEGEND PLATE
Part no.

BD-0205

Sunmulon mark

※ Used for CHARACTER unit.
（22.8）LEGENDFACE（13.4）

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

BD-6

ACCESSORIES【MOTHERBOARD】● MOTHERBOARD

Dimensions

Part no. BD-0286

54

Up to 4-digits can be wiring-saved.

【Specifications】

2 1

35

Available type : NUMERICAL unit, CHARACTER unit
Available max. digits : Up to 4-digits (Motherboards can be used in multiples.)

10 9

2 1

2 1

10 9

10 9

2 1

10 9

20

2

19

1

【Applicable connectors】

Connector forconnecting unit
(With polarity guide)

XG4M-2030 (Socket)

OMRON made

XG4T-2004 (Strain Relief)
HRS made

HIF3BA-20D-2.54R

10 3

101

100

9

9.5

※ We do not sell connectors.

102

Connector forcontrol signal input

Circuit Diagram

Input / output Terminal Table
Unit type NUMERICAL unit CHARACTER unit
(With circuit)
PN : BD-D0 □□□□
PN : BD-BN □□□Pin No.
1

VDD

Anode

2

VDD

Anode

3

A

4

B

5

C

6

D

7

LE100

Cathode 100

8

1

LE10

Cathode 101

9

LE102

Cathode 102

10

LE103

Cathode 103

11

BI

12

DP10

13

DP101

14

DP102

15

DP103

0

Connector for connecting unit
（103）

（102）

（101）

（100）

1 2 3 4 5 7 9 10 6 8

1 2 3 4 5 7 9 10 6 8

1 2 3 4 5 7 9 10 6 8

1 2 3 4 5 7 9 10 6 8

1 3 4 5 6 1116 19 1015
・
・
2
20

9 14

8 13

7 12

Connector for control signal input

16
17
18
19

GND

20

GND

Tolerance : ± 0.4 mm

Sunmulon Co., Ltd.

BD-7

REFERENCE WIRING DIAGRAM● BD-BN□□□NUMERICAL unit (With circuit)

Example of data common wiring

Power supply
VDD
GND● BD-BN□□□NUMERICAL unit (With circuit)

VDD
A
B
C
D
LE
BI
DP
NC
GND

VDD
A
B
C
D
LE
BI
DP
NC
GND

Control circuit

Example of single wiring

Power supply
VDD
GND

Sunmulon Co., Ltd.

VDD
A
B
C
D
LE
BI
DP
NC
GND

VDD
A
B
C
D
LE
BI
DP
NC
GND

Control circuit

BD-8

MOUNTING
1．Engraving on CHARACTER unit

Sunmulon mark1）Engrave on the black silk printing side.
The engraved area will allow light to pass through.

LEGENDFACE（22.8）
17

How to engrave by yourself.

2）The possible engraving range is shown on the right.

1.8
10.4
（13.4）

２．Removing Legend plate
Insert a flat-head screwdriver or similar into the square holeand push the legend plate out.

PRECAUTIONS FOR CORRECT USE
When assembling the unit, insert the unit slowly and in parallel to avoid excess force on the case’s pins and connector’s pins.

※ For handling instructions and precautions other than the above, please refer to “Safety Precautions for All 7-Segment displays”.

Tolerance : ± 0.4 mm
As of November 2023

Sunmulon Co., Ltd.

BD-9

Safety Precautions for All 7-Segment Displays
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 7-Segment display(1) Note that if the storage temperature range is exceeded, the product may not operate properly even if it is returned to within the specified operating
temperature range.
(2) Note that the LSI used internally may be destroyed by the floating or latch-up if each signal is input before the VDD is stabilized.
(3) The power input and control signal sections are not equipped with protection circuits, so do not apply electrical stress such as power supply fluctuations(ripple currents and voltages), lightning surges, and noise reverse voltages.
If the element is damaged, it may cause smoke, fire, or burnout. Be sure to use with a protection circuit.
(4) Wire the terminals with correct polarity. Connecting connectors backwards may cause a power short, resulting in burnout.
(5) Turn off the power to the product before starting installation, removal, wiring, maintenance, or inspection. Failure to turn power off may cause
electrical shock or fire.
(6) Be careful of electrostatic breakdown when handling.

Sunmulon Co., Ltd.

PRECAUTION-1

Safety Precautions for All 7-Segment Displays(7) Do not drop or otherwise apply strong force to the 7-Segment display.
(8) Do not place heavy objects on the switch.
(9) The product should be mounted on a solid surface.
(10) 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.
(11) Assemble correctly according to the handing instructions. Do not assemble or disassemble the product other than as described in the catalog,
as this may cause defects or accidents.
(12) 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

AC

DC

R
LED

AC

LED

(13) Wiring(a) Avoid wiring input lines in parallel with high-voltage lines and power lines, and use ceded wires and metal tubes for noise suppression.
(b) When tighting terminals or connecting connectors, do not apply more force than necessary form the back side.
Support the 7-Segment display with one hand as it may slip out of the front of the panel.
(c) Use the applicable connectors listed in the catalog for each model.

(14) Terminology explained(a) With or without Photocoupler The interface with the user side is isolated by specifying with photocoupler to prevent malfunction from noise.
It is especially effective for long-distance transmission, which is vulnerable to noise. (AD series)(b) Positive logic, Negative logic Applies to BCD code entry only. The input circuit is pulled up. When the user side indicates 0 on input
with an open collector output circuit, a positive logic turns on all transistors for inputs A to D.
Negative logic turns off all transistors for inputs A to D.
(c) Decoder driver This circuit converts the input of BCD code into a signal to drive 7-Segment LED.
(d) Data latch
The 4 bits of data from A to D must be in the holding sate. If LE is set to H (or open), the display will not change even if data
comes in later.
(e) Data through The 4 bits of data from A to D must be in the read state. When LE is set to L (GND), the display changes as the data input changes.

(15) 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).

(16) When wiping off dirt on the exterior of the 7-Segment display 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.
(17) Store the product away from malignant gases, dust, high temperature and high humidity, and keep it in our packing condition.

(18) 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.
(19) Service scope
The price of Sunmulon products do not include the cost of services, such as dispatching technicians.

Sunmulon Co., Ltd.

PRECAUTION-2