Infrared LED


Peak emission wavelength: 1.55 μm, with lens


The L12509 series is a high-power LED that emits infrared light at a peak wavelength of 1.55 μm. The LED is suitable for applications requiring use of an infrared emitter with InGaAs photodiode.

-Peak emission wavelength: 1.55 μm
-High radiant output power


Package Metal
Package Category With lens
Peak emission wavelength (min.) 1500 nm
Peak emission wavelength (typ.) 1550 nm
Peak emission wavelength (max.) 1600 nm
Spectral half-width (typ.) 120 nm
Radiant flux (typ.) 2.7 mW
Forward voltage (typ.) 0.8 V
Cutoff frequency (typ.) 15 MHz
Measurement condition Typ. Ta=25 ℃, unless otherwise noted

Emission Spectrum

Dimensional outline (unit: mm)

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