© 2017 Kingbright. All Rights Reserved. Spec No: DSAJ8874 / 1351000646 Rev No: V.7B Date: 06/30/2017 Page 1 / 4
DESCRIPTIONS
The Blue source color devices are made with InGaN Light
Emitting Diode
Electrostatic discharge and power surge could
damage the LEDs
It is recommended to use a wrist band or
anti-electrostatic glove when handling the LEDs
All devices, equipments and machineries must be
electrically grounded
FEATURES
0.8 inch digit height
Low current operation
Excellent character appearance
Mechanically rugged
Gray face, white segment
Package: 200 pcs / reel
Moisture sensitivity level: 2a
RoHS compliant
APPLICATIONS
Home and smart appliances
Display time and digital combination
Industrial and instrumental applications
Numeric status
ATTENTION
Observe precautions for handling
electrostatic discharge sensitive devices
PACKAGE DIMENSIONS
SELECTION GUIDE
ACSC08-51QBWA/D
Surface Mount Display
Notes:
1. All dimensions are in millimeters (inches), Tolerance is ±0.25(0.01") unless otherwise noted.
2. The specifications, characteristics and technical data described in the datasheet are subject to
change without prior notice.
3. The gap between the reflector and PCB shall not exceed 0.25mm.
Notes:
1. Luminous intensity / luminous Flux: +/-15%.
2. Luminous intensity value is traceable to CIE127-2007 standards.
Part Number Emitting Color
(Material) Lens Type Iv (ucd) @ 10mA [1]
Description
Min. Typ.
ACSC08-51QBWA/D ■ Blue (InGaN) White Diffused 3600 8700 Common Cathode,
Rt. Hand Decimal
RECOMMENDED SOLDERING PATTERN
(units: mm; tolerance: ± 0.15)
© 2017 Kingbright. All Rights Reserved. Spec No: DSAJ8874 / 1351000646 Rev No: V.7B Date: 06/30/2017 Page 2 / 4
ABSOLUTE MAXIMUM RATINGS at TA=25°C
ELECTRICAL / OPTICAL CHARACTERISTICS at TA=25°C
ACSC08-51QBWA/D
Parameter Symbol Emitting Color Value Unit
Typ. Max.
Wavelength at Peak Emission IF = 10mA λpeak Blue 460 - nm
Dominant Wavelength IF = 10mA λdom [1] Blue 465 - nm
Spectral Bandwidth at 50% Φ REL MAX
IF = 10mA Δλ Blue 25 - nm
Capacitance C Blue 100 - pF
Forward Voltage IF = 10mA VF [2] Blue 3.0 3.5 V
Reverse Current (VR = 5V) IR Blue - 50 uA
Parameter Symbol Unit
Power Dissipation PD 120 mW
Reverse Voltage VR 5 V
Junction Temperature Tj 115 °C
Operating Temperature Top -40 to +85 °C
Storage Temperature Tstg -40 to +85 °C
DC Forward Current IF 30 mA
Peak Forward Current IFM [1] 150 mA
Electrostatic Discharge Threshold (HBM) - 250 V
Value
Notes:
1. The dominant wavelength (λd) above is the setup value of the sorting machine. (Tolerance λd : ±1nm. )
2. Forward voltage: ±0.1V.
3. Wavelength value is traceable to CIE127-2007 standards.
4. Excess driving current and / or operating temperature higher than recommended conditions may result in severe light degradation or premature failure.
Notes:
1. 1/10 Duty Cycle, 0.1ms Pulse Width.
2. Relative humidity levels maintained between 40% and 60% in production area are recommended to avoid the build-up of static electricity – Ref JEDEC/JESD625-A and JEDEC/J-STD-033.
© 2017 Kingbright. All Rights Reserved. Spec No: DSAJ8874 / 1351000646 Rev No: V.7B Date: 06/30/2017 Page 3 / 4
TECHNICAL DATA
0%
20%
40%
60%
80%
100%
350 400 450 500 550 600 650 700 750 800
T
a
= 25 °C
Blue
Wavelength (nm)
Relative Intensity (a. u.)
RELATIVE INTENSITY vs. WAVELENGTH
BLUE
TAPE SPECIFICATIONS (units: mm)
REEL DIMENSION (units: mm)
REFLOW SOLDERING PROFILE for LEAD-FREE SMD PROCESS
ACSC08-51QBWA/D
Notes:
1. Don't cause stress to the LEDs while it is exposed to high temperature.
2. The maximum number of reflow soldering passes is 2 times.
3. Reflow soldering is recommended. Other soldering methods are not recommended as they might
cause damage to the product.
0
5
10
15
20
2.0 2.4 2.8 3.2 3.6 4.0
T
a
= 25 °C
Forward voltage (V)
Forward current (mA)
0.0
0.5
1.0
1.5
2.0
2.5
0 5 10 15 20
T
a
= 25 °C
Forward current (mA)
Luminous intensity normalised
at 10 mA
0
10
20
30
40
50
-40-20 0 20406080100
Ambient temperature (°C)
Permissible forward current (mA)
0.0
0.5
1.0
1.5
2.0
2.5
-40-20 0 20406080100
Ambient temperature (°C)
Luminous intensity normalised
at T a = 25 °C
Forward Current vs.
Forward Voltage
Luminous Intensity vs.
Forward Current
Forward Current Derating Curve Luminous Intensity vs.
Ambient Temperature
© 2017 Kingbright. All Rights Reserved. Spec No: DSAJ8874 / 1351000646 Rev No: V.7B Date: 06/30/2017 Page 4 / 4
PACKING & LABEL SPECIFICATIONS
PRECAUTIONARY NOTES
1. The information included in this document reflects representative usage scenarios and is intended for technical reference only.
2. The part number, type, and specifications mentioned in this document are subject to future change and improvement without notice. Before production usage customer should refer to
the latest datasheet for the updated specifications.
3. When using the products referenced in this document, please make sure the product is being operated within the environmental and electrical limits specified in the datasheet. If
customer usage exceeds the specified limits, Kingbright will not be responsible for any subsequent issues.
4. The information in this document applies to typical usage in consumer electronics applications. If customer's application has special reliability requirements or have life-threatening
liabilities, such as automotive or medical usage, please consult with Kingbright representative for further assistance.
5. The contents and information of this document may not be reproduced or re-transmitted without permission by Kingbright.
6. All design applications should refer to Kingbright application notes available at http://www.KingbrightUSA.com/ApplicationNotes
ACSC08-51QBWA/D
CIRCUIT DESIGN NOTES
1. Protective current-limiting resistors may be necessary to operate the LEDs within the specified range.
2. LEDs mounted in parallel should each be placed in series with its own current-limiting resistor.
3. The driving circuit should be designed to protect the LED against reverse
voltages and transient voltage spikes when the circuit is powered up
or shut down.
4. The safe operating current should be chosen after considering the
maximum ambient temperature of the operating environment.
5. Prolonged reverse bias should be avoided, as it could cause metal
migration, leading to an increase in leakage current or causing
a short circuit.
