HgCdTe (MCT) 32-Channel IR Detection Module

MWIR, with thermoelectrically cooled photovoltaic 32-element linear detector

32EM-5-01 is a 32-channel detection module. Thermoelectrically cooled MWIR HgCdTe 32-element photovoltaic detector with active area of single element 0.125 mm × 1 mm is integrated with DC-coupled 32-channel transimpedance preamplifier.

Spectral response (Ta = 20°C, Vb = 0 mV)


  • High sensitivity
  • High-speed response
  • 32 channels
  • Low crosstalk
  • Compact small size
  • Convenient cryogenic-free operation
  • External heatsink is necessary (recommended thermal resistance: ~2 K/W)
  • External TEC controller is necessary


  • Spectroscopy (gas detection, breath analysis)
  • Slow and fast contactless temperature measurement (railway transport, industrial and laboratory processes monitoring)
  • Optical sorting systems
  • Laser beam profiling and positioning
  • Flame and explosion detection
  • Defense and security
  • Combustion process control

Specification (Ta = 20°C)

Typical value
Optical parameters
Cut-on wavelength λcut-on (10%) µm
Peak wavelength λpeak, µm
Optimal wavelength λopt, µm
Cut-off wavelength λcut-off (10%) µm
Detectivity D*(λpeak), cm⋅Hz1/2/W
Detectivity D*(λopt), cm⋅Hz1/2/W
Electrical parameters
Voltage responsivity Rvpeak, RLoad = 1 MΩ), V/W
Voltage responsivity Rvopt, RLoad = 1 MΩ), V/W
Low cut-off frequency flo, Hz
High cut-off frequency fhi, kHz ≥400
Output impedance Rout, Ω 50
Output voltage swing Vout(RLoad = 1 MΩ), V -1

(negative output)

Output voltage offset Voff, mVDC
max –200
Power supply voltage Vsup, VDC
Other information
Active elements material
epitaxial HgCdTe heterostructure
Number of elements
1×32 linear array
Active area of single element A, mm×mm
Distance between active elements, μm
Acceptance angle, Φ
Ambient operating temperature Ta, °C
10 to 30

Mechanical layout, mm

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