0.56" 7 segment LED

0.56 inch double seven segment led display


LED supplier | china LED | 0.560.56" 7 segment LED
Part NO BL-D56A-24,BL-D56B-24
Dimension 25.00*17.10*8.00 mm
Weight 3.9000g
Package 95pcs/bag
Datasheet pdf
Feature: Description

0.56 inch double numeric LED display
0.56 inch digit height(14.20mm)
Low Current Operation
Common Anode and Common Cathode available
Excellent Character Appearance
High Light Output
Easy Mounting On PC Boards or Sockets
IC Compatible
Multicolor Available
Categorized for Luminous Intensity
Technically Rugged
Standard: Gray Surface, White Segment
RoHs Compliance

RoHs Compliance, Pb-free Anti-Static Attention

Electrical-optical characteristics:

Part No C.C.Part No C.A.colorwavelengthV typical(V)V max(V)Brightness(mcd)
BL-D56A-24DBL-D56B-24DSuper Bright Red6601.852.2140
BL-D56A-24SBL-D56B-24SHigh Bright Red6601.852.2120
BL-D56A-24URBL-D56B-24URUltra Bright Red6601.852.2160
BL-D56A-24UEBL-D56B-24UEHigh Bright Orange6302.12.5120
BL-D56A-24UYBL-D56B-24UYHigh Bright Yellow5902.12.575
BL-D56A-24UGBL-D56B-24UGHigh Bright Green5742.22.575
BL-D56A-24PGBL-D56B-24PGSuper Pure Green5253.04.2190
BL-D56A-24BBL-D56B-24BSuper Bright Blue4703.04.250
BL-D56A-24UBBL-D56B-24UBSuper Bright Blue4703.04.288

Package configuration & Internal circuit diagram
LED supplier | china LED | 0.56

All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01") unless otherwise note
Specifications are subject to change without notice.

Absolute maximum ratings (Ta= 25?C)

Reflector Surface color (1st number)/ Segment Lens color (2nd number):

Number 0 1 2 3 4 5
Ref Surface Color White Black Gray Red Green  
Epoxy Color Water clear White diffused Red Diffused Green Diffused Yellow Diffused  

Absolute maximum ratings (Ta= 25°C)

Parameter   S D UR E Y G Unit
Forward Current IF   25 25 25 25 25 30 mA
Power Dissipation Pd   60 60 60 60 60 65 mW
Reverse Voltage VR   5 5 5 5 5 5 V
Peak Forward Current IPF (Duty 1/10 @1KHZ)   150 150 150 150 150 150 mA
Operation Temperature TOPR -40 to +80 °C
Storage Temperature TSTG -40 to +85 °C
Lead Soldering Temperature TSOL   Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb) °C

Absolute maximum ratings (Ta= 25°C)

Parameter UHR UE YO UY UG PG UB UW Unit
Forward Current IF 30 30 30 30 30 30 30 30 mA
Power Dissipation Pd 75 65 65 65 75 110 120 120 mW
Reverse Voltage VR 5 5 5 5 5 5 5 5 V
Peak Forward Current IPF (Duty 1/10 @1KHZ) 150 150 150 150 150 150 100 100 mA
Operation Temperature TOPR -40 to +80 °C
Storage Temperature TSTG -40 to +85 °C
Lead Soldering Temperature TSOL Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb) °C

Partno description:

LED seven segment , called also LED numeric display, is widely applied in home appliance panel display and other application.

Part No of Seven segment LED display

Related Information

Applied for:
dvd player radio train instrument refrigerator

1. Application
The Seven Segment LED is widely applied for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Checking with BETLUX's Sales in
advance for information on applications in which exceptional reliability is required, particularly
when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in
aviation, transportation, traffic control equipment, medical and life support systems and safety

2. Storage
The storage ambient for the Seven Segment LED should not exceed 30℃ temperature or 70% relative humidity.
For extended storage out of their original packaging, it is recommended that the Seven Segment LEDs be stored
in a sealed container with appropriate desiccant, or in a desiccator with nitrogen ambient.

3. Cleaning
Avoid using any unspecified chemical solvent to clean LED . For example, Trichloroethylene, Chlorosen, Acetone, and Diflon S3MC.
Any cleaning method can only be taken under normal temperature in one minute or less if it is required.
Use water to clean the Seven Segment LED if necessary under room temperature
dry it immediately after that.

Any unsuitable stress applied to the epoxy may break bonding wires in LED
Any forming on lead pin must be done before soldering, not during or after soldering.
Avoid applying any stress to resin in order to prevent the epoxy fracture and break on bonding wire.
While forming, please use a tie bar cut or equivalent to hold or bend the pin.
2mm from the base of resin is the minimum distance for the place bending the lead pin.
Avoid bending the lead pin at the same point twice or more.

seven segment display forming caution


When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.

Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.

Recommended soldering conditions:


IR Reflow Soldering (for SMD display) Wave Soldering Soldering Iron
Pre-Heat 150-180°C Pre-Heat 100°C Max. Temperature 300°C Max.
Pre-Heat Time 120sec Max. Pre-Heat Time 60sec Max.
Peak Temperature 260°C Max. SolderWave 260°C Max. Soldering Time 3sec Max.(one time only)
Soldering Time 10 sec Max. Soldering Time 5sec Max.

Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED

ESD(Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD (Electrostatic Discharge):

n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs

n All devices, equipment, and machinery must be properly grounded

n Work tables, storage racks, etc. should be properly grounded

n Use ion blower to neutralize the static charge which might have built up on surface of the LED's

 plastic lens as a result of friction between LEDs during storage and handling

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, 

low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on” 

and Vf of the suspect LEDs at low currents.

The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP


antistatic notice-smd led


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Power source for digit display (5v/12v/24v AC/DC converter)

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