L12771_15 Datasheet, PDF (3/4 Pages) Hamamatsu Corporation – Infrared LED

Infrared LED
L12771 series
Light output vs. ambient temperature
(Typ. IF=50 mA)
3
2
1
0
-1
-2
-3
-4
-5
-40 -20 0
20 40 60 80 100
Ambient temperature (°C)
KLEDB0392EA
Allowable forward current vs. ambient temperature
(Typ.)
120
110
100
90
80
70
60
50
40
30
20
10
0
-40 -20 0
20 40 60 80 100
Ambient temperature (°C)
KLEDB0328EA
Allowable forward current vs. duty ratio
(Typ. Ta=25 °C)
10
1
Pulse width=100 μs
0.1
Pulse width=1 μs
Pulse width=10 μs
0.01
0.01
0.1
1
10
Duty ratio (%)
100
KLEDB0225EA
3