Infrared LED
Peak emission wavelength: 1.65 μm
L10823 series
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The L10823 series is a long wavelength infrared LED using an InGaAs chip. The peak emission occurs at a wavelength near the
methane gas absorption band, making the L10823 series suitable for a light source for methane gas detection.
Features Applications
Peak emission wavelength: 1.65 μm
High radiant output power
Narrow directivity (L10823-01)
Light source for methane gas detection
Absolute maximum ratings (Ta=25 °C, unless otherwise noted)
Electrical and optical characteristics (Ta=25 °C)
Parameter Symbol Condition Value Unit
Reverse voltage VR1V
Forward current IF80 mA
Forward current derating rate - Ta > 25 °C 1.1 mA/°C
Pulse forward current IFP Pulse width=10 μs
Duty ratio=1 % 1.0 A
Pulse forward current derating rate
- Ta > 25 °C 13 mA/°C
Power dissipation P 150 mW
Operating temperature Topr -30 to +85 °C
Storage temperature Tstg -40 to +100 °C
Parameter Symbol Condition L10823 L10823-01 Unit
Min. Typ. Max. Min. Typ. Max.
Peak emission wavelength λpIF=50 mA 1.6 1.65 1.7 1.6 1.65 1.7 μm
Spectral half width Δλ IF=50 mA - 120 170 - 120 170 nm
Radiant fl ux φeIF=50 mA 1.4 2.0 - 1.6 2.3 - mW
Forward voltage VFIF=50 mA - 0.9 1.4 - 0.9 1.4 V
Reverse current IRVR=1 V - - 10 - - 10 μA
Cut-off frequency *1fc
IF=50 mA ± 10 mAp-p
*
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10 15 - 10 15 - MHz
*1: Frequency at which the light output decreases by 3 dB from the light output at 100 kHz
www.hamamatsu.com
Infrared LED L10823 series
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Emission spectrum
Directivity
Allowable forward current vs. duty ratio
Radiant flux vs. forward current
Radiant output vs. ambient temperature
Forward current vs. forward voltage
Allowable forward current vs. ambient temperature
KLEDB0239EA
KLEDB0339EA
KLEDB0225EA
KLEDB0337EA
KLEDB0327EA
KLEDB0338EA
KLEDB0328EA
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Cat. No. KLED1057E01 Aug. 2009 DN
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Infrared LED L10823 series
Dimensional outlines (unit: mm)
5.4 ± 0.2
4.7 ± 0.1
Glass window
3.0 ± 0.1
3.6 ± 0.2
13.5 ± 1
2.54 ± 0.2
0.45 ± 0.05
Lead
Common to case
L10823 L10823-01
KLEDA0090EA KLEDA0091EA
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