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DATA SHEET
( 2 ) Electro-optical Characteristics
( Tc=25 C )
Parameter
Condition
IF=900mA
IF=900mA
Symbol
VF
Min.
43.5
2810
Typ.
46.5
3300
Max.
52.5
-
Unit
V
Forward Voltage
Luminous Flux
*1
*1
Φv
lm
General Color
IF=900mA
Ra
80
-
83
-
-
-
Rendering Index
*1
Junction-case
Thermal Resistance
Rj-c
1.0
C/W
(*1 Measured after driving for 20ms )
Chromaticity coordinates ( Condition : IF=900mA, Tc=25 C )
Color rank
W1
Center
Referenceꢀ(ANSI C78.377)
Color rank
Center
x
y
x
y
0.3818
0.3797
0.3818
0.4006
0.3736
0.3670
0.3898
0.3797
0.4044
0.3874
0.3578
0.3716
(3985K)
Oval parameter
a
b
c
W1
a
b
0.00939
0.00402
54.00
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
0.41
3600K
4400K
4000K
0.40
0.39
0.38
0.37
0.36
0.35
Color region
Color region
(ANSI)
B.B. Locus
3800K
4200K
0.36
0.37
0.38
0.39
0.40
0.41
x
Note: The tolerance of measurement at our tester is VF+/-3%, Φv+/-10%, Chromaticity(x,y)+/-0.005
and Ra+/-1.
CITILED
Symbol
Name
CL-L340-MC41W1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Ref.CE-P1113 05/11
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
