Thermoelectric Cooled HgCdTe

 

Typical Applications:   (2mm-9mm)
  •   Thermal Imaging
  •   Laser Detection
  •   Gas Analysis
  •   Railroad Hot Boxes
  •   Line Scanner

Infrared Associates, Inc. offers high quality Thermoelectrically Cooled HgCdTe detectors as represented in the following tables.  They offer high performance, with ease of operation. Standard detectors are optimized in the 2mm to 5mm wavelength.  Extended range detectors operate in the wavelength region beyond  5mm.   Optically Enhanced detectors are available with both reflective and refractive optical elements to improve the collection efficiency of these devices.  The apparent enhanced responsivity and D*, of theses detectors, relies on the ability of the optical components to refocus energy, which might not normally be incident, on the detector element.  These devices are most suitable for applications in which the energy incident is either collimated or diverging.  The optically enhanced detectors are, therefore, ideally suited for applications in which fiber optics are employed.

The detectors are mounted on two-stage, three-stage, or four-stage coolers in TO style packages as shown in the tables below. A thermistor is included in the package for temperature monitoring or for temperature control.  Soldered windows and welded  caps are used to hermetically seal the packages.  The packages are backfilled with inert gas for more efficient cooler operation. 

 They can be supplied with the following accessories:  preamplifiers, power supplies and temperature controllers.

Other wavelengths cutoffs are available on a limited basis, contact  Infrared Associates, Inc. with your specific requirements.
Standard TE Cooled HgCdTe Detectors
Model Number  Element Size (mm) Wave-length Peak lp  (mm) Wavelength Response (20%  lco) (mm)  D*  (lp,10000,1) Jones Resistance

 (W)

 Time Constant

(msec)

 Operating Temp.

  (K)

 Std. Pkg. Std. Window
2 mm  to  5 mm
MCT-5-TE2-0.10 MCT-5-TE2-0.25 MCT-5-TE2-0.50 MCT-5-TE2-1.00 0.10 X 0.10 0.25 X 0.25 0.50 X 0.50 1.00 X 1.00 ~4.5 > 5.0 > 2.0E10 50-1000 < 2 240 2-Stage TO-3 TO-8 TO-66 Sapphire
MCT-5-TE2-2.00 2.00 X 2.00 > 1.0E10
MCT-5-TE3-0.10 MCT-5-TE3-0.25 MCT-5-TE3-0.50 MCT-5-TE3-1.00 0.10 X 0.10 0.25 X 0.25 0.50 X 0.50 1.00 X 1.00 > 3.0E10 215 3-Stage TO-3 TO-8 TO-66
MCT-5-TE3-2.00 2.00 X 2.00 > 2.0E10
MCT-5-TE4-0.10 MCT-5-TE4-0.25 MCT-5-TE4-0.50 MCT-5-TE4-1.00 0.10 X 0.10 0.25 X 0.25 0.50 X 0.50 1.00 X 1.00 > 4.0E10 200 4-Stage TO-3
MCT-5-TE4-2.00 2.00 X 2.00 > 3.0E10
Extended Range TE Cooled HgCdTe Detectors
Model Number  Element Size (mm) Wave-length Peak lp  (mm) Wavelength Response (20%  lco) (mm) D*  (lp,10000,1) Jones Resistance

 (W)

 Time Constant

(msec)

 Operating Temp.

  (K)

 Std. Pkg. Std. Window
> 5 mm
MCT-6-TE3-0.25 MCT-6-TE3-1.00 0.25 X 0.25  1.00 X 1.00 ~5.5 > 6.0 > 2.0E10 100-1000 < 2 220 3-Stage TO-3  TO-66 AR Coated ZnSe
MCT-7.5-TE3-0.25 MCT-7.5-TE3-1.00 0.25 X 0.25  1.00 X 1.00 ~6.5 > 7.5 > 5.0E9
MCT-8-TE3-0.25 MCT-8-TE3-1.00 0.25 X 0.25 1.00 X 1.00 ~7.0 > 8.0 > 2.0E9
MCT-9-TE3-0.25 MCT-9-TE3-1.00 0.25 X 0.25 1.00 X 1.00 ~8.0 > 9.0 > 1.0E9
 

Optically Enhanced TE Cooled HgCdTe Detectors
Model Number Element Size (mm) Wave-length Peak lp  (mm) Wavelength Response (20%  lco) (mm) D*  (lp,10000,1) Jones Resistance

 (W)

 Time Constant

(msec)

 Operating Temp.

  (K)

 Std. Pkg. Std. Window
> 5 mm
OE-MCT-6-TE3-0.25 OE-MCT-6-TE3-1.00 0.25 X 0.25  1.00 X 1.00 ~5.5 > 6.0 > 8.0E10 100-1000 < 2 220 3-Stage TO-3  TO-66 AR Coated ZnSe
OE-MCT-7.5-TE3-0.25 OE-MCT-7.5-TE3-1.00 0.25 X 0.25  1.00 X 1.00 ~6.5 > 7.5 > 2.0E10
OE-MCT-8-TE3-0.25 OE-MCT-8-TE3-1.00 0.25 X 0.25 1.00 X 1.00 ~7.0 > 8.0 > 8.0E9
OE-MCT-9-TE3-0.25 OE-MCT-9-TE3-1.00 0.25 X 0.25 1.00 X 1.00 ~8.0 > 9.0 > 4.0E9