BL-BEG274 Datasheet, PDF (2/2 Pages) BRIGHT LED ELECTRONICS CORP – LED Hi-Eff Red and Green Low current requirement.

BRIGHT LED ELECTRONICS CORP.
SINCE 1981
BL-BEG274
● Electrical and optical characteristics(Ta=25℃)
Parameter
Forward Voltage
Luminous Intensity
Peak Wave Length
Dominant Wave Length
Spectral Line Half-width
Viewing Angle
Symbol
V_F
Iv
λp
λd
∆λ
2θ_1/2
Condition Color
I_F=20mA
I_F=20mA
I_F=20mA
I_F=20mA
I_F=20mA
I_F=20mA
Hi-Eff Red
Green
Hi-Eff Red
Green
Hi-Eff Red
Green
Hi-Eff Red
Green
Hi-Eff Red
Green
Hi-Eff Red
Green
Min.
-
-
-
617
560
-
-
Typ.
2.0
2.2
50
50
640
568
-
40
30
50
Max.
2.6
2.6
-
-
638
576
-
-
● Typical electro-optical characteristics curves
Fig.1 Relative intensity vs. Wavelength
(G)
(E)
1.0
Fig.2 Forward current derating curve
vs. Ambient temperature
60
50
40
0.5
30
20
0
500
580
640
720
Wavelength λ(nm)
10
0
20
40
60
80
100
Ambient temperature Ta(℃)
Unit
V
mcd
nm
nm
nm
deg
Fig.3 Forward current vs. Forward voltage
50
(E) _(G)
40
30
20
10
0
1
2
3
4
5
Forward voltage(V)
Fig.4 Relative luminous intensity
vs. Ambient temperature
3.0
2.5
2.0
1.5
1.0
0.5
0
-40
-20
0
20
40
60
Ambient temperature Ta(℃)
Fig.5 Relative luminous intensity
vs. Forward current
8.0
(G)
7.0
6.0
(E)
5.0
4.0
3.0
2.0
1.0
0
5 10
20
30
40
50
Forward current (mA)
Fig.6 Radiation diagram
0 10
20
30
1.0
40
0.9
50
0.8
60
70
0.7
80
90
0.5 0.3 0.1
0.2 0.4 0.6
Ver.2.0 Page: 2 of 2