R-Series Family

Low Noise, Red-Sensitive Silicon Photomultipliers

The R-Series is a new family of Silicon Photomultiplier (SiPM) sensors providing sensitivity into the red and NIR portion of the spectrum. The R-Series SiPM sensors feature high responsivity, fast signal response, and a low temperature coefficient, all achieved at a low operating voltage. The sensor is packaged in a compact and robust MLP package that is suitable for reflow solder processes. Both the sensor and the package are designed for volume production, with the product delivered on tape and reel. SiPM sensors are a type of avalanche photodiode (APD) that is operated in the Geiger mode. Unlike the similarly-operated SPAD that can only detect single photons, the SiPM overcomes these limitations by incorporating a ‘microcell’ structure over the active surface. It is strongly recommended that those new to SiPM sensors consult the Introduction to Silicon Photomultipliers Tech Note.

If you are unsure as to whether R-Series is the best product line for your application, please take a look at our product selection guide pages.

Key Features

Due to high gain and detection efficiency.
Low cost for high volume applications and reflow solder requirement.
  • Specifically designed for LIDAR and 3D ranging applications
  • High responsivity of 530kA/W @905nm due to the combination of high gain and detection efficiency
  • Ultra-low dark count rates of 35kHz/mm2
  • Ultra-fast rise times of 300ps with 600ps pulse width from SensL’s unique ‘fast output’ terminal
  • Temperature stability of 21.5mV/°C, negating the need for active voltage control
  • Bias voltage of <30V
  • Exceptional breakdown voltage uniformity of ±250mV over all R-Series products
  • Available in a low-cost, high volume, reflow solder compatible MLP package
  • 1mm sensor size
  • Evaluation board with either SMA connectors or pins are available

R-Series Product Images

Specification Summary

Please refer to the R-Series Datasheet for a complete list of features and technical details.

Breakdown Voltage (Vbr)24.2524.524.75V
Recommended overvoltage (Voltage above Vbr)+1+5V
Spectral Range3801100nm
Responsivity530kA/W35um microcell @ Vbr + 5V, at 905nm
Gain (anode to cathode readout)6x10635um microcell @ Vbr + 5V
Dark Count Rate35kHz/mm2@ Vbr + 2.5V
Temperature dependence of Vbr21.5mV/oC

R-Series eStore

Welcome to the SensL eStore.  Here you can quickly purchase sample quantities of all SiPM sensors including the R-Series.  If you require a formal quote or have a high volume requirement please email our sales team.

Please visit the main eStore for all of our products.

Part Number Ordering Information

Part NumberItem DescriptionSilicon SeriesSensor Size in mm (XX)Cell Size (YYY)Package Type
MicroFR-10010-MLP1mm R-Series Detector with 10u microcells in MLP/SMT packageR110MLP
MicroFR-10020-MLP1mm R-Series Detector with 20u microcells in MLP/SMT packageR120MLP
MicroFR-10035-MLP1mm R-Series Detector with 35u microcells in MLP/SMT packageR135MLP
MicroFR-SMA-10010MicroFR-10010-MLP mounted onto a PCB with THREE SMA Connectors (No Active Electronics)R110SMA
MicroFR-SMA-10020MicroFR-10020-MLP mounted onto a PCB with THREE SMA Connectors (No Active Electronics)R120SMA
MicroFR-SMA-10035MicroFR-10035-MLP mounted onto a PCB with THREE SMA Connectors (No Active Electronics)R135SMA