L3989_15 Datasheet, PDF (1/4 Pages) Hamamatsu Corporation – Infrared LED

Infrared LED
L3989 series
High power infrared LED
Features
High reliability
High radiant output power
High-speed response
Applications
Optical fiber communication
Optical switches
Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Condition
Value
Unit
Forward current
IF
80
mA
Reverse voltage
VR
3
V
Pulse forward current
IFP
Pulse width=10 μs
Duty ratio=1%
0.8
A
Operating temperature
Topr
Storage temperature
Tstg
-30 to +85
°C
-40 to +100*
°C
* The L3989 is guaranteed to resist temperature cycle test of up to 5 cycles.
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the
product within the absolute maximum ratings.
Electrical and optical characteristics (Ta=25 °C)
Parameter
Peak emission wavelength
Spectral half width
Forward voltage
Pulse forward voltage
Reverse current
Radiant flux
Radiant illuminance
Cutoff frequency
Symbol
Condition
λp IF=50 mA
∆λ IF=50 mA
VF IF=50 mA
VFP IF=0.8 A
IR VR=3 V
ɸe IF=50 mA
PE IF=50 mA
fc IF=50 mA + 1 mAp-p
L3989
Min. Typ. Max.
800 830 860
- 40 -
- 1.45 1.60
- 2.3 2.9
- - 10
6.0 8.0 -
- 0.9 -
15 30 -
L3989-01
Min. Typ. Max.
800 830 860
- 40 -
- 1.45 1.60
- 2.3 2.9
- - 10
2.5 3.6 -
- 2.2 -
15 30 -
L3989-02
Min. Typ. Max.
800 830 860
- 40 -
- 1.45 1.60
- 2.3 2.9
- - 10
4.0 5.8 -
- 0.9 -
15 30 -
Unit
nm
nm
V
V
μA
mW
mW/cm²
MHz
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