L12771_15 Datasheet, PDF (2/4 Pages) Hamamatsu Corporation – Infrared LED

Infrared LED
L12771 series
Emission spectrum
(Typ. Ta=25 °C, IF=50 mA)
100
90
80
70
60
50
40
30
20
10
0
1000
1100
1200 1300 1400
1500
Wavelength (nm)
KLEDB0332EA
Radiant flux vs. forward current
(Typ. Ta=25 °C, tw=100 μs, 0.1%)
100
10
L12771-01
L12771
1
0.1
10
100
Forward current (mA)
1000
KLEDB0389EA
Pulse forward current vs. pulse forward voltage
1000
(Typ. Ta=25 °C, tw=100 μs, 0.1%)
100
Directivity
10° ^0° 10°
(Typ. Ta=25 °C)
20°
20°
30°
30°
40°
40°
50°
50°
60°
L12771
60°
70°
80°
L12771-01
70°
80°
90°
90°
100 80 60 40 20 0 20 40 60 80 100
Relative light output (%)
KLEDB0391EA
10
0.5
1.0
1.5
2.0
Pulse forward voltage (V)
2.5
KLEDB0390EA
2