LED
Infrared LED
L8245
Peak emission wavelength: 1.65 µm
L8245 is a long-wavelength infrared LED using an InGaAs chip. The peak emission occurs at a wavelength near the methane gas absorption
band, making L8245 ideal for a light source for methane gas detection.
Features
Applications
l
Peak emission wavelength: 1.65 µm
l
High radiant output
l
Light source for methane gas detection
s
Absolute maximum ratings (Ta=25
°C,
unless otherwise noted)
Parameter
Reverse voltage
Forward current
Forward current decrease rate
Pulse forward current
Pulse forward current decrease rate
Power dissipation
Operating temperature
Storage temperature
Symbol
V
R
Max.
I
F
-
I
FP
-
P
Topr
Tstg
Condition
Value
1
80
1.1
1.0
13
150
-30 to +85
-40 to +100 *
1
Unit
V
mA
mA/°C
A
mA/°C
mW
°C
°C
Pulse width=10 µs
Duty ratio=1 %
*1: Guaranteed to resist temperature cycle test of up to 5 cycles.
s
Electrical and optical characteristics (Ta=25
°C)
Parameter
Peak emission wavelength
Spectral half width
Radiant flux
Forward voltage
Reverse current
Cut-off frequency
Symbol
λp
∆λ
φe
V
F
I
R
fc
Condition
I
F
=50 mA
I
F
=50 mA
I
F
=50 mA
I
F
=50 mA
V
R
=1 V
I
F
=50 mA±10 mAp-p, *
2
Min.
1.6
-
0.5
-
-
1
Typ.
1.65
130
0.8
1.0
-
3
Max.
1.7
-
-
1.5
10
-
Unit
µm
nm
mW
V
µA
MHz
*2: Frequency at which the optical output decreases by -3 dB versus a reference output level at 100 kHz.
L8245 may be damaged or performance may deteriorate due to static electricity, so use caution when handling.
1
HAMAMATSU [ HAMAMATSU CORPORATION ]
