1-155
Figure 1. Relative Intensity vs. Wavelength.
Notes:
1. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
2. The dominant wavelength, λd, is derived from the CIE chromaticity diagram and represents the single wavelength which defines
the color of the device.
3. Radiant intensity, Ie, in watts/steradian, may be found from the equation Ie = Iv/ηv, where Iv is the luminous intensity in candelas
and ηv is the luminous efficacy in lumens/watt.
4. Please refer to Application Note 1061 for information comparing standard green and emerald green light output degradation.
Sym. Description Device HLMP- Min. Typ. Max. Units Test Conditions
ηVLuminous AlGaAs Red 80
Efficacy High Efficiency Red 145
Orange 380 lumens/ See Note 3
Yellow 500 watt
Green 595
Emerald Green 656
Electrical/Optical Characteristics at TA = 25°C (cont’d)
Green/
AlGaAs High Efficiency Emerald
Parameter Red Red/Orange Yellow Green Units
Peak Forward Current 300 90 60 90 mA
Average Forward Current[1] 20 25 20 25 mA
DC Current[2] 30 30 20 30 mA
Transient Forward Current[3] 500 mA
(10 µsec Pulse)
LED Junction Temperature 110 110 110 110 °C
Operating Temperature Range -20 to +100 -20 to +100
-55 to +100 -55 to +100 °C
Storage Temperature Range -55 to +100 -55 to +100
Lead Soldering Temperature
[1.6 mm (0.063 in.) below 260°C for 5 seconds
seating plane]
Notes:
1. See Figure 5 to establish pulsed operating conditions.
2. For AlGaAs Red, Red, Orange, and Green series derate linearly from 50°C at 0.5 mA/°C. For Yellow series derate linearly from 50°C at
0.34 mA/°C.
3. The transient peak current is the maximum non-recurring peak current that can be applied to the device without damaging the LED
die and wire bond. It is not recommended that the device be operated at peak currents beyond the peak forward current listed in the
Absolute Maximum Ratings.
Absolute Maximum Ratings at TA = 25°C
ORANGE AlGaAs RED
HIGH EFFICIENCY RED
WAVELENGTH – nm
RELATIVE INTENSITY
1.0
0.5
0
500 550 600 650 700 750
YELLOW
EMERALD GREEN
HIGH
PERFORMANCE
GREEN
T = 25° C
A