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Optical Receiver Module with High Quantum Efficiency Photodiode

PX05S3 is a PD05S1 photodiode chip packaged in a TO-5 header and capped with a flat window TO-cap. The photodiode chip features a large light sensitive area with a diameter of 120 µm. The bottom illuminated p-i-n photodiode structure is optimized for sensing and LiDAR, as well as quantum key distribution and quantum technology application.

The photodiode offers a very low dark current in combination with an excellent responsivity in the wavelength region from 980 nm to 1620 nm. The small chip form factor is ideally suited for applications with stringent size limitations.


  • Very high responsivity: 1.2 A/W
  • Very low dark current: 40 pA
  • Large light sensitive area: 120 µm
  • Also available as bare die

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