Ambient Temperature:

 +25°C
Detector Operating Temperature -35°C
Typical Cooler Power @/or near Max. Cooling: 0.9 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 2.5 2.6   µm
D*(500K, 650 Hz, 1Hz) 1.6 x 109 2.7 x 109   cm Hz1/2 w-1
D*( lpk, 650 Hz, 1 Hz) 1.5 x 1011 2.5 x 1011   cm Hz1/2 w-1
Element Resistance (Dark) 2.5 5.0 15.0 Megohms/
Time Constant (not measured)   1250 2500 µsec
Rated Element Temperature     +65 °C
DT@/or near Max. Cooling 55 60   °C

For square or rectangular element sizes and/or packages not listed, please contact our application engineers, phone (707) 545-4181, or fax (707) 545-5113.

When using the table below, remove parenthesis and insert appropriate designation for package type in this space: 6 for TO-66, 7 for TO-37, and 8 for TO-8.

Model
Number		 Element Size
(mm)		 Responsivity
(lpk, 650) vw-1		 Standard Package
Options
Minimum Typical
AT2-1( ) 1 x 1 1.3 x 106 2.0 x 106 TO-37, TO-8
AT2-2( ) 2 x 2 6.6 x 105 1.0 x 106 TO-37, TO-8
AT2-3( ) 3 x 3 4.3 x 105 6.4 x 105 TO-37, TO-8
AT2-4( )* 4 x 4 3.2 x 105 4.8 x 105 TO-37, TO-8
* Minimum D*(lpk, 650, 1) >1.0 x 1011 cm Hz1/2 w-1