PbS 3 Watt Cooled Photoconductive IR Detectors

TE Cooled Infrared Detectors with Fast Response and Ultra-High Sensitivity in the 1 – 3.3 um Wavelength Band
Ambient Temperature: +25°C
Detector Operating Temperature see model types below
Typical Cooler Power at or near Max. Cooling: 1.8 volts @ 1.2 amps
Standard Specifications – Electrical
All detector specifications are at a bias voltage of 50 V/mm distance between electrodes applied across the detector and with a one MegOhm load resistor in series. All specifications apply at or near maximum cooling with the heat sink @ +25°C.
  Minimum Typical Maximum Units
Wavelength of Max. Response 2.6 2.7   µm
D*(λpk, 630 Hz, 1 Hz) 2.0 x 1011 3.0 x 1011   cm Hz1/2 w-1
Element Resistance (Dark) 2.0 6.0 20.0 MegOhm
Time Constant (not typically measured)   1750 3500 µsec
Rated Element Temperature     +65 °C
Delta T at or near Max. Cooling 70 75   °C

For square or rectangular element sizes and/or packages not listed, please contact us: (707) 620-0160, Info@irmatl.com
When using the table below, remove parenthesis and insert appropriate designation for package type in the space. Example: 6 for TO-66, 8 for TO-8.

Model Number Element
Responsivity (lpk, 630) v/w Operating Temp Standard Package Options
Minimum Typical
A1-( )C4T 1 x 1 1,400,000 2,100,000 -50°C TO-66, TO-8
A2-( )C4T 2 x 2 700,000 1,100,000 -50°C TO-66, TO-8
A3-( )C4T 3 x 3 430,000 650,000 -45°C TO-66, TO-8
A6-( )C2T 6 x 6 240,000 360,000 -25°C TO-66, TO-8
* Minimum D*(lpk, 630, 1) >1.5 x 1010 cm Hz1/2 w-1*
  • To specify thermistor option for all TE cooled detectors, add the suffix -T or -TC (calibrated) to the model number.

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