DATA SHEET
Chromaticity coordinates (Condition : IF=60mA , Ts=25C)
Color rank
Center
Reference (ANSI C78.377)
Color rank
x
Center
0.4073
a
0.4299
WW1
b
0.3996
c
0.3889
d
0.4147
3 / 11
WW1
*Color region stay within MacAdam "3-step" ellipse from the chromaticity center.
x
y
0.4073
0.3917
Oval parameter
a
0.00951
b
0.00417
θ°
52.97
y
0.3917
0.4165
0.4015
0.3690
0.3814
(3465K)
*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)
0.43
0.42
0.41
0.40
y
0.39
0.38
0.37
0.36
0.38
3700K
3300K
x-y chart-CIE1931
3900K
3500K
3100K
Color region
Color region
(ANSI)
B.B. Locus
0.39
0.40
0.41
x
0.42
0.43
0.44
Ranking(Condition:IF=60mA, Ts=25C)
Q
2.80
3.00
V
F
Forward Voltage
R
3.00
3.20
V
S
3.20
3.40
B
12.4
15.1
Luminous Flux
φV
lm
C
15.1
17.9
D
17.9
20.6
Note 1) The tolerance of forward voltage(V
F
) measurement is V
F
±3% at our tester
Note 2) The tolerance of luminous Intensity(I
V
) measurement is ±10% at our tester
Note 3) The tolerance of Chromaticity coordinates (x,y)measurement is ±0.01 at our tester
Parameter
Symbol
Rank
Min.
Max.
Unit
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
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Ref.CE-P1399 08/11
CL-L270-MU1WW1-A1
CITILED
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
