L1909 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – TO-46 type GaAIAs infrared LED

LED
Infrared LED
L1909
TO-46 type GaAlAs infrared LED
Features
l High radiant output power
l Direct modulation possible
l High reliability and long life
Applications
l Auto-focus
l Automatic control systems
l Optical switches
l Mark sensors
l Optical remote control
s Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Condition
Value
Unit
Forward current
IF
80
mA
Reverse voltage
Pulse forward current
Operating temperature
VR
IFP
Topr
Pulse width=10 µs
Duty ratio=1 %
5
V
1.0
A
-30 to +85
°C
Storage temperature
Tstg
-40 to +100 *
°C
* Guaranteed to resist temperature cycle test of up to 5 cycles.
s Electrical and optical characteristics (Ta=25 °C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Peak emission wavelength
λp
IF=50 mA
870
890
920
nm
Spectral half width
∆λ
IF=50 mA
-
80
-
nm
Forward voltage
VF
IF=50 mA
-
1.4
1.5
V
Pulse forward voltage
VFP IF=1.0 A
-
2.8
3.4
V
Reverse current
IR
VR=5 V
-
-
5
µA
Radiant flux
φe
IF=50 mA
8
10
-
mW
Radiant illuminance
PE
IF=50 mA
-
1.0
-
mW/cm²
Rise time
tr
IF=50 mA, 10 to 90 %
-
0.45
0.7
µs
Fall time
tf
IF=50 mA, 90 to 10 %
-
0.45
0.7
µs