Photodiode by Laser Components

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The SAR500H4 from Laser Components is a Silicon Avalanche Photodiode that operates at a wavelength of 400 nm - 1000 nm. It has a bandwidth of 20 kHz - 470 MHz and minimum aperture size of Ø 1.70. This photodiode has a responsivity of 0.22 MV/W (at 540 nm), 0.32 MV/W (at 650 nm), and 0.4 MV/W (at 905 nm). It has a peak sensitivity of 905 nm and Noise Equivalent Power (NEP) of 230 fW/rt(Hz) (at 540 nm), 160 fW/rt(Hz) (at 650 nm) & 125 fW/rt(Hz) (at 905 nm).

The SAR500H4 has an optimized low-noise hybrid preamplifier and offers differential-ended output. It has a diameter of 0.5 mm and an output noise density of 50 nV/rt(Hz). This photodiode requires a DC supply voltage of 3.3 V or 5 V, consumes 30 mA of current, and dissipates 150 mW of power. It is available in a 5-pin TO-46 package and is ideal for range finding / LiDAR, optical communication systems, laser scanners, spectroscopy, fluorescence, and medical applications.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    Laser Components
  • Description
    400 nm - 1000 nm, Silicon Avalanche Photodiode for Laser Scanner Applications


  • Application
    Range finding / LIDAR, Optical communication systems, Laser scanners, Spectroscopy, Fluorescence, Medical

General Parameters

  • Noise equivalent power(NEP) :
    125 to 230 fW/vHz
  • Package
    TO-5, TO-46
  • Package Type
  • Photodetector Type
  • Operation Mode
  • Wavelength Range
    400 to 1000 nm
  • Photodiode Material
    Silicon, InGaAs
  • Power Consumption
    150 mW
  • Supply Current
    30 mA
  • Supply Voltage
    3.3 to 5 V
  • Bandwidth
    20 kHz to 470 MHz
  • Voltage Responsivity
    0.22 to 0.4 MV/W
  • Note
    Output noise density: 50 nV/vHz, Input referred noise density: 7 pA/vHz

Physical Properties

  • Active Area Diameter
    0.5 mm


  • Operating Temperature display
    -40 to 85 Degree C
  • Storage Temperature
    -55 to 100 Degree C

Technical Documents

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