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1mmMLP SquareSensL's R-Series SiPMs are a new generation N-on-P process optimised for highest possible responsivity at 905nm for 3D Imaging and Ranging applications such as LiDAR and gesture recognition.


R-Series SiPMs are currently only offered as 1mm active area devices with options of 10µm, 20µm and 35µm microcell sizes. Smaller microcells result in lower responsivity but have the benefit of faster timing and a higher saturation level / dynamic range.


SiPMs are the ideal detector for 3D imaging and ranging - offering significant benefits over conventional silicon avalanche photodiodes (APDs) and making SiPMs the "detector of choice" in demanding high volume markets. Key benefits include:-


  • High responsivity - up to 530kA/W @ 905nm
  • High gain - 6x106
  • Low operating voltage - <30V at 21°C
  • Low temperature coefficient of operating voltage - 21.5mV/°C
  • Excellent breakdown voltage uniformity - ±250mV
  • Excellent optical signal uniformity - <±10% between all devices with single operating voltage
  • Fast rise time - <300ps
  • Reflow solderable SMT package


SensL have modified their high volume transfer moulded epoxy surface mount Micro Leadframe Package (MLP) for improved thermal conductivity as many of the applications are subject to high ambient light conditions.


We appreciate that many users in the 3D imaging and ranging market are unfamiliar with SiPMs and whilst a solution to the many significant problems with Si APDs are being urgently sought there is a need to develop an understanding of the capabilities of the technology. SensL offer an evaluation board with your choice of R-Series SiPM mounted on a PCB with three SMA connectors for Bias, Standard- and Fast-out terminals. An SMA board experimentation guide provides a series of simple experiments designed to help familiarity with the technology.


We are always happy to discuss SiPMs do please contact AP Technologies to discuss your application.


SensL's product selection guide
R-Series data sheet
R-Series user manual
Download MicroB-series Data Sheet Handling & soldering guidelines for MLP-SMT package
adobe pdf icon SMA board reference design. NOTE C-Series with reverse polarity to R-Series
SMA board experiment guide

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