BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-S3149A
2
● Electrical and optical characteristics(Ta=25℃)
Parameter
Forward Voltage
Symbol Condition
Min.
Typ.
2.1
7.0
-
Max.
Unit
V
VF
Iv
IF=20mA
IF=20mA
VR=5V
-
2.6
Luminous Intensity
Reverse Current
Peak Wave Length
Dominant Wave Length
Spectral Line Half-width
Viewing Angle
-
-
mcd
µA
nm
nm
nm
deg
IR
-
100
λp
λd
∆λ
2θ1/2
IF=20mA
IF=20mA
IF=20mA
IF=20mA
-
585
-
-
582
592
-
-
35
-
-
120
● Typical Electro-Optical Characteristics Curves
Fig.1 Relative intensity vs. Wavelength
Fig.2 Forward current derating curve
vs. Ambient temperature
1.0
60
50
40
30
20
0.5
10
0
0
535
585
635
20
40
60
80
100
Wavelength λ(nm)
Ambient temperature Ta(℃)
Fig.3 Forward current vs. Forward voltage
Fig.4 Relative luminous intensity
vs. Ambient temperature
50
40
30
20
10
0
3.0
2.5
2.0
1.5
1.0
0.5
0
1
2
3
4
5
-40
-20
0
20
40
60
Forward voltage(V)
Ambient temperature Ta(℃)
Fig.5 Relative luminous intensity
vs. Forward current
Fig.6 Radiation diagram
0
10
20
4.0
30
3.0
2.0
40
50
1.0
0.9
0.8
60
70
1.0
0
0.7
80
90
10
20
30
40
50
0.5
0.3
0.1
0.2
0.4
0.6
Forward current (mA)
Ver.2.0 Page: 2 of 2
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