Product Nomenclature
CLU731 - 12 10 C4 - 27 N V1 N8
[1]
[1]
[2]
[3]
[4]
[5]
[6]
Product shape
Die count in series
Die count in parallel
Nominal CCT
Type
Vivid Series
[2]
[3]
[4]
CLU731
12
10
2700K
Natural
V1
[5]
[6]
1.
Introduction
1-1. Product Description
CITIZEN ELECTRONICS is the first COB manufacture. Our advanced knowledge and packaging technology for
many years has excellent reliability and high quality of our products. CITILED COB Series covers a wide range of
luminous flux from a 10W incandescent bulb to a 300W mercury lamp in general lighting sources. The element
arrangement of LED package is capable of utilizing light more effectively and higher performance.
The new package “High Intensity COB Type.” provides smaller LES and higher flux intensity. Our new small LES
( Light emitting surface ) package has succeeded in producing higher flux intensity through use of our advanced
packaging technology. It is suitable for luminaires with a narrow beam angle such as spot lights. Enough space
around LES on the PCB accepts flexibility of optics attachment. This package is 3-Step MacAdam ellipse at hot binning.
Ver.2 is improved higher lumen density and lower thermal resistance as same package outline of previous version.
New lineup "low VF product (9V) " is added.
1-2. Features
・Mechanical
Dimensions
: 28.0×28.0×1.4 (mm)
・Package
Structure
: Aluminum Base Chip on Board
・Reference
Assembly
: M3 screw, Connector
・Nominal
CCT
: 2,700K, 3,000K, 3,500K, 4,000K, 5,000K
・Chromaticity
Range
: 3-step MacAdam Ellipse
・Thermal
Resistance
: 0.42C/W
・Maximum
drive current
: 2300mA
・RoHS
compliant
・Better
die arrangement for optics
・Wide
range of luminous flux and high efficacy
・Improved
lumen density compared with previous version
・UL
recognized component (E358566)
2
Ref.CE-P4110 05/17
2. Performance Characteristics
2-1. Electro Optical Characteristics
Voltage
( V)
Min.
CLU731-1210C4-27NV1N8
CLU731-1210C4-30NV1N8
CLU731-1210C4-35NV1N8
CLU731-1210C4-40NV1N8
CLU731-1210C4-50NV1N8
Notes :
1. Citizen Electronics maintains a tolerance of ± 10% on luminous flux measurements.
2. Citizen Electronics maintains a tolerance of ± 3% on forward voltage measurements.
* Values of Luminous flux at Tc=25C are provided as reference only.
2700K
3000K
3500K
4000K
5000K
1,750
1,750
1,750
1,750
1,750
34.5
34.5
34.5
34.5
34.5
Typ.
37.6
37.6
37.6
37.6
37.6
Max.
40.7
40.7
40.7
40.7
40.7
Luminous flux
( lm )
Thermal
Efficacy
( lm/W ) Resistance
Rj-c
Tc=25C*
( C/W )
Typ.
Typ.
5,745
6,032
6,223
6,644
6,848
82
86
89
95
98
0.42
0.42
0.42
0.42
0.42
Product code
Nominal
CCT
Forward
Current
( mA )
Tj = 85C
Min.
4,763
5,001
5,160
5,509
5,678
Typ.
5,414
5,684
5,864
6,261
6,453
2-2. Absolute Maximum Ratings
Parameter
Input Power (W)
Forward Current (mA)
Reverse Current (mA)
Operating Temperature (C)
Storage Temperature (C)
Case Temperature (C)
Junction Temperature (C)
Symbol
Pi
If
Ir
Top
Tst
Tc
Tj
Rating
102.4
2300
1
-40 ~ +100
-40 ~ +100
105
140
*2
*3
*1
*1
*1. Input power and forward current are the values when the LED is used within the range of
the derating curve in this data sheet.
*2. Refer to 3. Outline drawing for Tc measurement point.
*3. D.C. Current : Tj = Tc + Rj-c
×
Pi
3
Ref.CE-P4110 05/17
2-3. Chromaticity Characteristics
( Rated current, Tj=85C )
Oval parameter
Color Region
Nominal
CCT
2,700K
3,000K
3-step MacAdam ellipse
3,500K
4,000K
5,000K
Center Point
( x, y )
( 0.4488 , 0.3938 )
( 0.4259 , 0.3863 )
( 0.4011 , 0.3753 )
( 0.3768 , 0.3616 )
( 0.3431 , 0.3379 )
Major Axis
a
0.00774
0.00834
0.00951
0.00939
0.00822
Minor Axis
b
0.00411
0.00408
0.00417
0.00402
0.00354
Ellipse
Rotation Angle
θ
57.28
53.17
52.97
54.00
59.62
* Color region stay within 3-step MacAdam ellipse from the chromaticity center.
* θ is the angle between the major axis of the ellipse and the x-axis, and a and b are the major and minor semi-axes of an ellipse.
( Ref. IEC 60081:1997 AnnexD )
x-y chart CIE1931
0.45
0.40
Black
Body
Locus
2,700K
3,000K
3,500K
4,000K
5,000K
3-step
[ Natural ]
y
0.35
0.30
0.30
0.35
0.40
x
0.45
0.50
Note : Citizen Electronics maintains chromaticity ( x, y ) +/-0.005
4
Ref.CE-P4110 05/17
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