Red, AlGaAs Red
RATIO OF MAXIMUM OPERATING PEAK
CURRENT TO TEMPERATURE DERATED
MAXIMUM DC CURRENT
100
RATIO OF MAXIMUM OPERATING PEAK
CURRENT TO TEMPERATURE DERATED
MAXIMUM DC CURRENT
100
10
OPERATION IN
THIS REGION
REQUIRES
TEMPERATURE
DERATING
OF I
DC
MAX.
10
OPERATION IN
THIS REGION
REQUIRES
TEMPERATURE
DERATING
OF I
DC
MAX.
10
HZ
10
0
10
30
3k
1k
I
DC
MAX
1
1
10
100
1000
10,000
t
P
– PULSE DURATION –
µs
DC OPERATION
I
DC
MAX
10
Z
kH
1
kH
Z
3
Z
kH
30
0
0
0
HZ
Z
kH
HZ
HZ
HZ
HZ
I
PEAK
I
PEAK
1
0.1
DC OPERATION
1
10
100
1000
10,000
t
P
– PULSE DURATION –
µs
Figure 1. Maximum Allowable Peak Current vs. Pulse
Duration – Red.
Figure 2. Maximum Allowed Peak Current vs. Pulse
Duration – AlGaAs Red.
50
200
180
I
F
– FORWARD CURRENT PER
SEGMENT – mA
RED
160
140
120
100
80
60
40
20
20
30
40 50
60
70 80
90 100 110
RED
I
DC
MAX – MAXIMUM DC CURRENT PER
SEGMENT – mA
45
40
35
30
25
20
15
10
5
0
10
R
θ
J-A
= 525°C/W
AlGaAs RED
AlGaAs RED
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
F
– FORWARD CURRENT – V
T
A
– AMBIENT TEMPERATURE –
°C
Figure 3. Maximum Allowable DC Current vs.
Ambient Temperature.
Figure 4. Forward Current vs. Forward Voltage.
2.50
1.2
RED
RELATIVE LUMINOUS INTENSITY
(NORMALIZED TO 1 AT 20 mA)
2.25
2.00
1.75
1.50
1.25
AlGaAs RED
1.00
0.75
0.50
0.25
0
0
5
10
15
20 25
30
µ
PEAK
– RELATIVE EFFICIENCY
(NORMALIZED TO 1 AT 20 mA)
1.1
RED
1.0
AlGaAs RED
0.9
0.8
0.7
35 40
45 50
0.6
2
3 4 5
10
20 30 40 50
100
200
I
PEAK
– PEAK FORWARD CURRENT
PER SEGMENT
I
F
– FORWARD CURRENT PER SEGMENT – mA
Figure 5. Relative Luminous Intensity vs. DC
Forward Current.
Figure 6. Relative Efficiency (Luminous Intensity
per Unit Current) vs. Peak Current.
3-97
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
