SURFACE MOUNT LED LAMP
SUPER BRIGHT 1.8 mm (Dome Lens)
QTLP660C-R
Red
QTLP660C-Y
Yellow
QTLP660C-IB
Blue
TYPICAL PERFORMANCE CURVES
(QTLP660C-R, -E, -O, -Y and -AG)
Fig. 1 Forward Current vs. Forward Voltage
100
90
80
70
60
50
40
30
20
10
0
1.0
1.5
2.0
2.5
3.0
2.5
QTLP660C-E
Orange
QTLP660C-AG
Yellow-Green
QTLP660C-O
Yellow-Orange
QTLP660C-IG
True Green
Fig. 2 Relative Luminous Intensity
vs. DC Forward Current
RELATIVE LUMNOUS INTENSITY
(NORMALIZED AT 20 mA)
I
F
- FORWARD CURRENT (mA)
2.0
1.5
1.0
0.5
0.0
0
10
20
30
40
50
VF - FORWARD VOLTAGE (V)
I
F
- DC FORWARD CURRENT (mA)
Fig. 3 Relative Intensity vs. Peak Wavelength
1.0
AG
Y
O
E
R
RELATIVE INTENSITY
0.5
0
500
550
600
650
700
WAVELENGTH (nm)
Fig.4 Radiation Diagram
I
F
- FORWARD CURRENT (mA)
50
40
Fig.5 Maximum Forward Current
vs. Ambient Temperature
-30藲
-40藲
-50藲
-60藲
-70藲
-80藲
-20藲 -10藲
0藲 10藲
20藲
30藲
40藲
50藲
60藲
70藲
80藲
R, E, O and AG
30
20
10
0
Y
-90藲
1.0 0.8 0.6 0.4
0.2 0
0.2
0.4 0.6 0.8 1.0
90藲
0
25
50
75
100
REL. LUMINOUS INTENSITY (%)
AMBIENT TEMPERATURE T
A
(藲C)
www.fairchildsemi.com
4 OF 8
8/31/01
DS300103