ON Semiconductor — Red-Enhanced Silicon Photomultipliers (SiPM)

March 3, 2020
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The R-Series is a new range of Silicon Photomultipliers (SiPM) providing increased sensitivity into the red and NIR region of the electromagnetic spectrum.

LiDAR and ranging applications that use 905 nm light can benefit from this technology. These SiPM sensors are an improvement over avalanche photodiodes (APD) and PIN diodes due to their high gain and single photon sensitivity. For LiDAR applications, this enables the detection of low reflectivity targets at very long distance. Unlike the similarly-operated SPAD that can only detect single photons, the SiPM overcomes this limitation by incorporating a 'microcell' structure that allows for multi-photon detection with a high dynamic range. The sensor is packaged in a compact and robust molded lead frame package (MLP) provided on tape and reel.

The current release from the R-Series are the RB sensors that provide improved photon detection efficiency and reduced crosstalk over the previous RA sensors. The RB sensors feature single photon sensitivity, high responsivity and fast signal response, all achieved at a low bias voltage. The sensor is packaged in a compact and robust molded leadframe package (MLP) that is suitable for reflow solder processes. Both the sensor and the package are designed for volume production, and are delivered on tape and reel.



  • High gain and detection efficiency
  • From a unique ‘fast output’ terminal
  • PDE of >10 % at 905 nm
  • Single photon sensitivity
  • 1 mm sensor size, which a choice of microcell size
  • Compact and robust MLP package
  • Benefits

    • High responsivity of >100 kA/W @905 nm
    • Ultra-fast rise times and pulse widths
    • Evaluation boards with either SMA connectors or pins are available


    • 3D Ranging & Sensing
    • Medical Imaging
    • Hazard & Threat
    • Biophotonics & Sciences
    • High Energy Physics

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