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SiPM 3mm

We are pleased to announce the release of KETEK's new generation of high performance Silicon Photomultipliers (SiPMs), the WL-Series.


KETEK, based in Munich Germany, are well-established as a supplier of CMOS-based SiPMs offering excellent performance in a rugged MSL1 qualified package and the new range of 3mm-only devices bring improvements in every key operating characteristic.


WL-Series SiPMs are available with three microcell pitches of 15µm, 35µm and 47µm - all offer performance enhancements compared with the previous WB-Series but are optimised respectively for Linearity/Saturation, Crosstalk and Photon Detection Efficiency.


Key improvements offered by WL-Series SiPMs include:-


  • High PDE; 51% (47µm microcell, 6.5V overbias)
  • High Gain; 9.1M (47µm microcell, 6.5V overbias)
  • Fast Recovery Time (Tau); (7ns, 15µm microcell)
  • Industry-leading Saturation/Dynamic Range; 15µm
  • Low DCR; 25kHz/mm² (15µm microcell, 2.5V overbias)
  • Low Crosstalk; 4% (35µm microcell, 2.5V overbias)
  • Low Afterpulsing; 1% at 2.5Vob
  • Low Dark Current (max) ≡ DCR 45kHz/mm² (15µm microcell, 2.5V overbias)
  • Low & Uniform Breakdown Voltage; 29.5±0.75V (±125mV per reel)


KETEK's Silicon Photomultipliers (SiPMs) surpass the current standard detectors (PMT, APD & PIN photodiodes) in many low light applications and are replacing these in a number of key applications areas such as:-


  • Medical Imaging (PET, SPECT, CT)
  • Hazard & Threat Detection
  • LiDAR & 3D Ranging
  • Biophotonics
  • High Energy Physics
  • Sorting & Recycling


SiPMs combine the benefits of vacuum PMTs (high photon detection efficiency, gain and signal-to-noise) with those of APDs (robustness, miniaturised design, low operation voltage, cost-effective and magnetic insensitivity) to produce an outstanding low level light sensor with exceptional performance at low cost.