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ams OSRAM SFH 2705 & SFH 2706 Silicon PIN Photodiodes

ams OSRAM SFH 2705 and SFH 2706 Silicon PIN Photodiodes are designed for use in health monitoring applications like heart rate monitoring and pulse oximetry. The SFH 2705 and SFH 2706 Photodiodes feature high sensitivity at 530nm green and 660nm red, providing a high signal at these wavelengths. This feature enables manufacturers of fitness trackers, smartwatches, and medical patches to reduce the driving current and save battery life for a longer user experience before recharging.

The ams OSRAM SFH 2706 Silicon PIN Photodiode is integration-compatible with the device's predecessors with a 2.0mm x 1.8mm x 0.6mm package. The SFH 2705 has a 2.2mm x 2.5mm x 0.6mm square form factor, allowing even more flexible placement of photodiodes next to LEDs in the system, such as in smartwatches.

Features

  • 400nm to 1100nm spectral range of sensitivity (λ10%)
  • Wavelength of maximum sensitivity (λS max)
    • SFH 2705: 930nm
    • SFH 2706: 940nm
  • 1.4µA photocurrent (IP)
  • Forward voltage (VF)
    • SFH 2705: 1.05V
    • SFH 2706: 1.00V
  • 16V reverse voltage (VR)
  • Radiant sensitive area (A)
    • SFH 2705: 3.4mm2
    • SFH 2706: 3.27mm2
  • 2kV HBM ESD withstand voltage according to ANSI/ESDA/JEDEC JS-001 (VESD)
  • Suitable for reflow soldering
  • -40°C to +85°C operating temperature range
  • Dimensions of chip area
    • SFH 2705: 1.975mm x 1.975mm 
    • SFH 2706: 2.8mm x 1.4mm
  • Package dimensions
    • SFH 2705: 2.2mm x 2.5mm x 0.6mm
    • SFH 2706: 2.0mm x 1.8mm x 0.6mm
  • Clear epoxy package

Applications

  • Heart rate monitoring
  • Pulse oximetry
  • Machine controls
  • Light barriers
  • Vision controls
  • Rain sensors
  • Glucometers
  • Bill acceptors
  • Medical equipment
  • Coin counters
  • Level measurement

Datasheets

Package Outline (SFH 2705)

Mechanical Drawing - ams OSRAM SFH 2705 & SFH 2706 Silicon PIN Photodiodes

Package Outline (SFH 2706)

Mechanical Drawing - ams OSRAM SFH 2705 & SFH 2706 Silicon PIN Photodiodes

Additional Resources

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Publicado: 2022-08-02 | Actualizado: 2025-11-20