Broadcom AFBR-S4N44C013 4mm NUV-HD Single SiPM

Broadcom® AFBR-S4N44C013 4mm NUV-HD Single SiPM (Silicon Photomultiplier) is designed for ultra-sensitive precision measurement of single photons. This photomultiplier provides an active area of 3.72mm x 3.72mm. The high packing density of the single chip is achieved using Through-Silicon-Via (TSV) technology. A larger area can be covered by tiling multiple AFBR-S4N44C013 arrays without edge losses. The passivation layer is glass, highly transparent down to UV wavelengths. This results in a broad response in the visible light spectrum with high sensitivity towards the blue and near-UV light spectrum region.

The AFBR-S4N44C013 SiPM is best suited for the detection of low-level pulsed light sources. This includes detection of Cherenkov light or scintillation light from the most common organic (plastic) and inorganic scintillator materials. The AFBR-S4N44C013 SiPM is lead-free and is compliant with RoHS and REACH. Typical applications include X-ray and gamma ray detection, gamma ray spectroscopy, and nuclear medicine.


  • High Photo Detection Efficiency (PDE) of more than 55% at 420nm
  • High fill factors
  • Excellent Single Photon Time Resolution (SPTR) and CRT
  • 180mV (3 sigma) breakdown voltage with good uniformity
  • 4-side tileable with TSV technology 
  • Highly transparent glass protection layer
  • Excellent uniformity of gain
  • RoHS and REACH compliant


  • 420nm spectral range
  • 26.9V breakdown voltage
  • 26mV/K temperature coefficient of breakdown voltage
  • Photodetection efficiency:
    • 43% (typical) measure at 3V above breakdown
    • 55% (performance) at 7V above breakdown
  • 120kcps/mm2 (typical) dark count rate per unit
  • 3.88mm × 3.88mm dimensions
  • 30µm × 30µm cell pitch 
  • 15060 micro cells
  • 76% micro cell fill factor
  • –20°C to 50°C operating temperature range


  • X-ray and gamma ray detection
  • Gamma ray spectroscopy
  • Safety and security
  • Nuclear medicine
  • Positron emission tomography
  • Life sciences
  • Flow cytometry
  • Fluorescence luminescence measurements
  • Time-correlated single photon counting
  • High energy physics
  • Physics experiments
  • Evaluation and prototyping
  • Astrophysics

Block & Reflow Soldering Diagram

Pad Layout & Soldering Ball Geometry

Mechanical Drawing - Broadcom AFBR-S4N44C013 4mm NUV-HD Single SiPM
Published: 2018-11-20 | Updated: 2023-01-26