K11908-010K_15 Datasheet, PDF (1/4 Pages) Hamamatsu Corporation – Two-color detector

Two-color detector
K11908-010K
Two InGaAs PIN PD with different spectral response are
arranged one above the other to cover a broad wavelength range
The K11908-010K incorporates an InGaAs PIN photodiode (cutoff wavelength: λc=1.7 μm) mounted over a long wavelength
type InGaAs PIN photodiode (λc=2.55 μm), along the same optical axis. The spectral response covered from 0.9 μm to 2.55
μm as wide range and delivers low noise.
Features
InGaAs (λc=1.7 μm) mounted over InGaAs
(λc=2.55 μm) along the same optical axis
Wide spectral response range: 0.9 to 2.55 μm
Low noise, low dark current
Applications
Radiation thermometer
Spectroscopy
Optical measurement equipment
Structure
Parameter
Window material
Package
Photosensitive area
Symbol
-
-
-
Condition
InGaAs (λc=1.7 μm)
InGaAs (λc=2.55 μm)
Specification
Unit
Borosilicate glass
-
4-pin TO-5
-
2.4 × 2.4
φ1.0
mm
Absolute maximum ratings
Parameter
Symbol
Condition
Value
Unit
Reverse voltage
VR max
InGaAs (λc=1.7 μm), Ta=25 °C
InGaAs (λc=2.55 μm), Ta=25 °C
2
1
V
Operating temperature
Topr
-40 to +70
°C
Storage temperature
Tstg
-55 to +85
°C
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.
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