SURFACE MOUNT LED LAMP
STANDARD BRIGHT 1206 (Inner Lens)
QTLP651C-2
HER
QTLP651C-7
AlGaAs Red
TYPICAL PERFORMANCE CURVES
Fig. 1 Forward Current vs. Forward Voltage
90
2.0
QTLP651C-3
Yellow
QTLP651C-B
Blue
QTLP651C-4
Green
Fig. 2 Relative Luminous Intensity vs.
DC Forward Current
I
F
- FORWARD CURRENT (mA)
70
60
50
40
30
20
10
0
1.0
2.0
2.5
3.0
4.0
5.0
BLUE
AlGaAs
RED
HER
GREEN
RELATIVE LUMNOUS INTENSITY
(NORMALIZED AT 20 mA)
80
1.5
AlGaAs
RED
YELLOW
1.0
BLUE
0.5
HER
YELLOW
GREEN
0.0
0
5
10
15
20
25
30
V
F
- FORWARD VOLTAGE (V)
I
F
- DC FORWARD CURRENT (mA)
Fig. 3 Relative Intensity vs. Peak Wavelength
HER
BLUE
GREEN
YELLOW
AlGaAs RED
1.0
RELATIVE INTENSITY
0.5
0
300
350
400
450
500
550
600
650
700
750
WAVELENGTH (nm)
Fig.5 Maximum Forward Current
vs. Ambient Temperature
50
Fig.4 Radiation Diagram
-20
擄
-10
擄
0
擄
10
擄
20
擄
IF - FORWARD CURRENT (mA)
40
-30
擄
-40
擄
-50
擄
-60
擄
-70
擄
-80
擄
-90
擄
1.0
0.8
30
擄
40
擄
50
擄
60
擄
70
擄
80
擄
30
20
10
0.6 0.4
0.2
0
0.2
0.4 0.6
0.8
1.0
90
擄
0
0
20
40
60
80
100
REL. LUMINOUS INTENSITY (%)
T
A
- AMBIENT TEMPERATURE (藲C)
漏 2002 Fairchild Semiconductor Corporation
Page 3 of 7
4/16/02