BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-R3131E-T
●
Electrical and optical characteristics(Ta=25℃)
Parameter
Forward Voltage
Luminous Intensity
Symbol
V
F
Iv
I
R
λp
λd
∆λ
2θ
1/2
Condition
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
Min.
-
-
-
-
582
-
-
Typ.
2.0
9.0
-
585
-
35
120
Max.
2.6
-
100
-
595
-
-
Unit
V
mcd
Reverse Current
Peak Wave Length
Dominant Wave Length
Spectral Line Half-width
Viewing Angle
µA
nm
nm
nm
deg
●
Typical electro-optical characteristics curves
Fig.1 Relative intensity vs. Wavelength
1.0
60
Fig.2 Forward current derating curve
vs. Ambient temperature
50
Relative radiant intensity
Forward current(mA)
40
0.5
30
20
10
0
535
585
635
0
20
40
60
80
100
Wavelength
λ(nm)
Ambient temperature Ta(
℃
)
Fig.3 Forward current vs. Forward voltage
50
3.0
Fig.4 Relative luminous intensity
vs. Ambient temperature
40
Relative luminous intensity
2.5
Forward current(mA)
2.0
30
1.5
20
1.0
10
0.5
0
1
2
3
4
5
0
-40
-20
0
20
40
60
Forward voltage(V)
Ambient temperature Ta(
℃
)
Fig.5 Relative luminous intensity
vs. Forward current
4.0
Fig.6 Radiation diagram
0
10
20
30
Relative luminous intensity(@20mA)
3.0
Relative radiant intensity
1.0
40
2.0
0.9
0.8
50
60
70
1.0
0.7
80
90
0
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
BRIGHT [ BRIGHT LED ELECTRONICS CORP ]
