PYD 5731

Pyroelectric Detector by Excelitas Technologies

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The PYD 5731 from Excelitas Technologies is a Pyroelectric Detector that has a cut-on wavelength of 5.5 μm. It has a field of view of 99o and an optical distance of 500 μm. This pyroelectric detector has a responsivity of 11 kV/W and match of up to 10%. It has an average filter transmittance above 77% (for wavelength 7.5 μm - 13.5 μm) & below 0.5% (for wavelength less than 5 μm) and a noise of 70 μV. This pyroelectric detector has dual detectors with an element size of 1.4 mm x 0.4 mm and is RoHS compliant.

The PYD 5731 uses Sigma-Delta and DSP techniques for signal conversion and has a configurable motion detection unit. It requires a DC supply voltage of 3.3 V and consumes 10 μA of current. This pyroelectric detector is available in a TO-46 metal housing package that measures 17.06 (L) mm x 5.6 (W) mm x Ø 4.7 (H) mm and is ideal for mid-distance motion detection (with lens), energy saving, intrusion alarms, horizontal mounting, compact lens designs applications.

Product Specifications

Product Details

  • Part Number
    PYD 5731
  • Manufacturer
    Excelitas Technologies
  • Description
    5.5 µm Pyroelectric Detector for Mid-Distance Motion Detection Applications


  • Applications
    Mid Distance Motion Detection (With Lens), Energy Saving Applications, Intrusion Alarms, Horizontal Mounting Applications, Compact Lens Designs

General Parameters

  • ADC Resolution
    14 Bits
  • ADC Step Size
    6 to 7.1 µV/Count (Sensitivity)
  • Channels
    Dual Channel
  • Field of View(FOV)
    99 Degree
  • Detector Type
    Analog, Digital
  • Supply Voltage
    2.7 to 3.6 V
  • Package
  • Voltage Responsivity
    8.5 to 11 kV/W
  • Element Size
    1.4 x 1.4 mm2
  • Integrated Components
    Integrated Temperature Sensor
  • Noise Density
    70 to 180 µV
  • Package Type
  • Spectral Band
  • Spectral Range
    5.2 to 5.8 µm (cut-on)
  • Supply Current
    10 to 15 µA
  • Note
    Spacing: 0.4 mm

Environmental Conditions

  • Operating Temperature display
    -40 to 70 Degree C
  • Storage Temperature
    -40 to 85 Degree C

Technical Documents

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