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DATA SHEET
Chromaticity coordinates (Condition : IF=60mA , Ts=25C)
Color rank
L2
Center
Reference (ANSI C78.377)
ꢀ
Color rank
Center
x
y
x
y
0.4578
0.4101
0.4578
0.4813
0.4562
0.4373
0.4593
0.4101
0.4319
0.4260
0.3893
0.3944
(2725K)
Oval parameter
a
b
c
L2
a
b
0.00774
0.00411
57.28
θ°
d
*Color region stay within MacAdam "3-step" ellipse from the chromaticity center.
*The chromaticity center refers to ANSI C78.377:2008.
Please refer to ANSI C78.377 for 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
0.44
2900K
2700K
2500K
0.43
0.42
0.41
0.40
0.39
0.38
Color region
Color region
(ANSI)
B.B. Locus
2600K
2800K
0.44
0.43
0.45
0.46
x
0.47
0.48
0.49
Ranking(Condition:IF=60mA, Ts=25C)
Parameter
Symbol
VF
Unit
Rank
Min.
2.80
3.00
3.20
11.9
14.6
17.2
Max.
3.00
3.20
3.40
14.6
17.2
19.9
Q
R
S
Forward Voltage
V
B
C
D
Luminous Flux
φV
lm
Note 1) The tolerance of forward voltage(VF) measurement is VF 3ꢀ at our tester
Note 2) The tolerance of luminous Intensity(IV) measurement is 10ꢀ at our tester
Note 3) The tolerance of Chromaticity coordinates (x,y)measurement is 0.01 at our tester
Measurement Conditions
1) Chip is mounted on board( size 100mm×40mm)
2) Board material is FR-4, covered with green color resist and thickness of copper is 18µm.
Symbol
Name
CITILED
CL-L270-MU1L2-A1
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Ref.CE-P1401 08/11
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
