4x4 NUV Silicon Photomultiplier (SiPM) in HD Technology

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The AFBR-S4N44P163 is a 4x4-pixel silicon photo multiplier (SiPM) array for the ultra-sensitive precision counting of single photons.

The device makes efficient use of surface area by using through silicon via (TSV) technology, allowing for a high packing density without wires. Larger detector areas can be covered by tiling multiple arrays almost without edge losses.

The detector has a broad response in the visible light spectrum with particular optimization towards blue and near UV light. 

A thin glass layer highly transparent down to UV wavelength protects the array, making it well suited for the detection of scintillation or Cherenkov light from the most common scintillators, such as LSO, LYSO, GSO, BGO, NaI, CsI, BaF, LaBr. 


  • High PDE of more than 55% @ 420 nm
  • High fill factors (pixel and tile)
  • Excellent SPTR and CRT
  • Uniformity of break down voltage (Δ < 300 mV across tile)
  • With TSV technology, arrays are 4-side tilable
  • Cell pitch 30 x 30µm²
  • Tile size 15.9 x 15.9 mm²
  • Array thickness of only 1.28 mm
  • Highly transparent glass protection layer
  • 32 backside contacts, reflow solderable
  • Operating temperature range from -20°C to +50°C
  • RoHS and REACH compliant 


  • X-ray and gamma ray detection
  • Nuclear medicine
  • Positron emission tomography
  • Safety and security
  • Physics experiments

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Form Factor NA