HgCdTe (MCT) Photoconductive Detector

HgCdTe (MCT) Photoconductive Detector

1.0 – 6.3 µm, ambient temperature

PC-6 is uncooled IR photoconductive detector based on sophisticated HgCdTe heterostructure for the best performance and stability. The device is optimized for the maximum performance at λopt = 6.0 μm. The device should operate in optimum bias voltage and current readout mode. Performance at low frequencies is reduced due to 1/f noise.

Spectral response (Ta = 20°C)


  • High performance in the 1.0 - 6.3 µm spectral range
  • Ambient temperature operation
  • Active area from 50×50 µm^2 to 4×4 mm^2
  • Long lifetime and MTBF
  • Stability and reliability
  • 1/f noise

Specification (Ta = 20°C)

Active element material
epitaxial HgCdTe heterostructure
Optimum wavelength λopt, µm
Detectivity D*(λpeak, 20 kHz), cm⋅Hz1/2/W
Detectivity D*(λopt, 20 kHz), cm⋅Hz1/2/W
Current responsivity-active area length product Riopt)·L, A·mm/W
Time constant τ, ns
1/f noise corner frequency fc, Hz
Bias voltage-active area length ratio Vb/L, V/mm
Resistance R, Ω
Active area A, mm×mm
0.05×0.05, 0.1×0.1, 0.25×0.25, 0.5×0.5, 1×1, 2×2, 3×3
Acceptance angle, Φ
~90° ~102° *)

~124° **)


*)  Aperture C = Ø4 mm.

**)  Aperture C = Ø6 mm.

Mechanical layout, mm

Dedicated preamplifier

Read more

If you need Evaluation Units, please contact us.