Two-color detector
K12729-010K
Wide spectral response range: 0.9 to 2.55 μm
Compact ceramic package
The K12729-010K is a two-color detector in a compact ceramic package, covering a wide spectral response range. Like the
current K11908-010K, it incorporates two InGaAs PIN photodiodes with different spectral response, along the same optical
axis. It features low noise and low dark current and supports reflow soldering.
Features
Wide spectral response range
Compact, low noise, low dark current
Supports reflow soldering
Applications
Spectrophotometers
Radiation thermometers
Structure
Parameter
Window material
Package
Photosensitive area
Symbol
-
-
-
Condition
InGaAs (λc=1.7 μm)
InGaAs (λc=2.55 μm)
Specification
Borosilicate glass
Ceramic
2.4 × 2.4
ϕ1.0
Unit
-
-
mm
Absolute maximum ratings
Parameter
Reverse voltage
Operating temperature
Storage temperature
Symbol
VR max
Topr
Tstg
Condition
InGaAs (λc=1.7 μm), Ta=25 °C
InGaAs (λc=2.55 μm), Ta=25 °C
No condensation
No condensation
Value
2
1
-20 to +70
-20 to +85
Unit
V
°C
°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.
Electrical and optical characteristics (Ta=25 °C)
Parameter
Spectral response
range
Peak sensitivity
wavelength
Photosensitivity
Dark current
Cutoff frequency
Terminal capacitance
Shunt resistance
Detectivity
Symbol
λ
λp
S
ID
fc
Ct
Rsh
D*
Condition
InGaAs (λc=1.7 μm)
InGaAs (λc=2.55 μm)
InGaAs (λc=1.7 μm)
InGaAs (λc=2.55 μm)
InGaAs (λc=1.7 μm), λ=λp
InGaAs (λc=2.55 μm), λ=λp
InGaAs (λc=1.7 μm), VR=10 mV
InGaAs (λc=2.55 μm), VR=10 mV
InGaAs (λc=1.7 μm), -3 dB
VR=0 V, RL=50 Ω
InGaAs (λc=2.55 μm), -3 dB
VR=0 V, RL=50 Ω
InGaAs (λc=1.7 μm), VR=0 V, f=1 MHz
InGaAs (λc=2.55 μm), VR=0 V, f=1 MHz
InGaAs (λc=1.7 μm), VR=10 mV
InGaAs (λc=2.55 μm), VR=10 mV
InGaAs (λc=1.7 μm), λ=λp
InGaAs (λc=2.55 μm), λ=λp
Min.
-
-
-
-
0.85
0.7
-
-
1
2
-
-
1
2.8
1 × 1012
2 × 1010
www.hamamatsu.com
Typ.
0.9 to 1.7
1.7 to 2.55
1.55
2.1
0.95
1.0
1
0.7
2
6
1.5
0.5
10
14
5 × 1012
7 × 1010
Max.
-
-
-
-
-
-
10
3.5
-
-
2.5
1
-
-
-
-
Unit
μm
μm
A/W
nA
μA
MHz
nF
MΩ
kΩ
cm∙Hz1/2/W
1
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