P3257 Datasheet, PDF (1/3 Pages) Hamamatsu Corporation – MCT photoconductive detector

INFRARED DETECTOR
MCT photoconductive detector
P3257 series, P4249-08
10 µm band infrared detector with high sensitivity and high-speed response
Features
l High-speed response, high sensitivity in the 10 µm
band detection
l Photoconductive element that decreases its resistance
by input of infrared light
l Custom devices available
Custom devices not listed in this catalog are also
available with different spectral response, active
area sizes and number of element.
l Wide product lineups including non-cooled type,
thermoelectrically cooled type and micro-cooled type
Easy-to-use infrared detector modules with preamp
available.
Applications
l Thermal imaging
l Remote sensing
l FTIR
l CO2 laser detection
l Infrared spectrophotometer
Accessories (Optional)
l Valve operator
A3515
l Amplifiers for dewar type MCT photoconductive detector
l Infrared detector module with preamp
C5185
P7752-10
(with P3257-10)
I Specification / Absolute maximum ratings
Type No.
Dimensional
outline/
Window
material
Package
Cooling
P3257-25
P3257-01
P3257-10
➀/ZnS
P4249-08
➁/ZnS
*1: 8 elements array
Metal dewar
Liquid
nitrogen
Active area
(mm)
0.025 × 0.025
0.1 × 0.1
1×1
0.5 × 0.5 *
Absolute maximum ratings
Allowable
current
Operating
temperature
Topr
Storage
temperature
Tstg
(mA)
(°C)
(°C)
10
20
40
-40 to +60
-55 to +60
30
I Electrical and optical characteristics (Typ. unless otherwise noted)
Type No.
Measurement
condition
Element
temperature
T
Peak
sensitivity
wavelength
lp
Cut-off
wavelength
lc
Photo
sensitivity *
S
l=lp
D^*
(500, 1200, 1)
D^*
Rise time
tr
(lp, 1200, 1) _{0 to 63 %}
Min.
Typ.
(°C)
(µm)
(µm)
(V/W) (cm·Hz^1/2/W) (cm·Hz^1/2/W) (cm·Hz^1/2/W)
(µs)
P3257-25
1 × 10^#
P3257-01
P3257-10
-196
10.0
12.0
3 × 10^"
1 × 10^!
1 × 10 2 × 10 4.0 × 10
0.6
P4249-08
2 × 10^!
Dark
resistance
Rd
(W)
40
80
40
*2: Photo sensitivity changes with the bias current. The values in the above table are measured with the optimum bias current.
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