Infrared LED
L9337 series
High power LED for optical switches
The L9337 series is an infrared LED developed for optical switches. Because a high-power LED chip is mounted, the L9337
series provides higher radiant output power than previous devices, moreover it is available at a low cost due to the improved
manufacturing process. The L9337-01/-02 use a high reliability package making them suitable for automobile applications.
Features
Applications
High radiant output power
High reliability
Optical switches
Automobiles
Low price
Absolute maximum ratings (Ta=25 °C, unless otherwise noted)
Parameter
Reverse voltage
Forward current
Symbol
Condition
Value
5
80
Unit
V
mA
VR
IF
-
Forward current decrease rate
Ta > 25 °C
1.1
mA/°C
Pulse width=10 μs
Duty ratio=1%
Pulse forward current
1.0
13
A
IFP
-
Pulse forward current
decrease rate
Ta > 25 °C
mA/°C
Power dissipation
Operating temperature
Storage temperature
P
Topr
Tstg
150
mW
°C
°C
-30 to +85
-40 to +100*1
*1: The L9337 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)
L9337
L9337-01
L9337-02
Parameter
Symbol
Condition
IF=50 mA
IF=50 mA
IF=50 mA
IF=1 A
VR=5 V
IF=50 mA
IF=50 mA ± 4 mAp-p
Unit
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
840 870 900 840 870 900 840 870 900
Peak emission wavelength
Spectral half width
Forward voltage
Pulse forward voltage
Reverse current
λp
Δλ
VF
VFP
IR
nm
nm
V
V
μA
-
-
-
-
18
25
45
-
-
-
-
-
10
25
45
-
-
-
-
-
7.5
25
45
-
1.42 1.5
2.7 3.4
-
23
40
1.42 1.5
2.7 3.4
-
13
40
1.42 1.5
2.7 3.4
-
10
40
5
-
-
5
-
-
5
-
-
Radiant flux
Cut-off frequency*2
φe
fc
mW
MHz
*2: Frequency at which the optical output drops by -3 dB from that at 100 kHz.
1
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