Fig. 3 Relative Intensity vs. Peak Wavelength
1.0
0.5
0
500
550
600
650
700
750
90
V
F
 - FORWARD VOLTAGE (V)
WAVELENGTH (nm)
Fig. 1 Forward Current vs. Forward Voltage
40
50
60
70
80
30
20
10
0
1.0
2.0
3.0
4.0
5.0
I
F
 - DC FORWARD CURRENT (mA)
Fig. 2 Relative Luminous Intensity vs.
DC Forward Current
2.5
2.0
1.5
1.0
0.5
0.0
0
5
10
15
20
25
30
YELLOW
GREEN
HER
HER
YELLOW
GREEN
GREEN
YELLOW
T
A
 - AMBIENT TEMPERATURE (贑)
Fig. 5 Current Derating Curve
50
40
30
20
10
0
0
20
40
60
80
100
HER, GREEN
YELLOW
-80?/SPAN>
80?/SPAN>
-70?/SPAN>
70?/SPAN>
-60?/SPAN>
60?/SPAN>
-50?/SPAN>
50?/SPAN>
-40?/SPAN>
40?/SPAN>
-30?/SPAN>
30?/SPAN>
-20?/SPAN>
20?/SPAN>
-10?/SPAN>
10?/SPAN>
0?/SPAN>
1.0    0.8    0.6   0.4
0.2    0    0.2
0.4   0.6   0.8   1.0
Fig.4 Radiation Diagram
-90?/SPAN>
90?/SPAN>
REL. LUMINOUS INTENSITY (%)
HER
1.2
1.2
DIFFUSED
NON-DIFFUSED
TYPICAL PERFORMANCE CURVES
(TA =25癈)
4 mm FLAT TOP LAMPS
DS300015
3/14/01
3 OF 4
www.fairchildsemi.com
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