Si APD array S8550-02


4 × 8 element APD array with low noise and enhanced short-wavelength sensitivity

The S8550-02 is an APD (avalanche photodiode) array designed for short wavelength detection, featuring low noise and low terminal capacitance. The S8550-02 also offers uniform gain and small crosstalk between each element.

-High sensitivity and low noise in short wavelength region
-Low terminal capacitance
-Optimized for blue light detection
-Uniform gain and low crosstalk variation between each element


Type Short wavelength type
(4 × 8 elements array)
Photosensitive area 1.6 × 1.6 mm
Package Ceramic
Peak sensitivity wavelength (typ.) 600 nm
Spectral response range (min.) 320 to 1000 nm
Dark current (max.) 10 nA
Cutoff frequency (typ.) 250 MHz
Terminal capacitance (typ.) 9 pF
Breakdown voltage (typ.) 400 V
Temperature coefficient of breakdown voltage (typ.) 0.78 V/℃
Gain (typ.) 50
Measurement condition Typ. Ta=25 ℃, unless otherwise noted,
Photosensitivity: λ=800 nm, M=1

Spectral response


Dimensional outline (unit: mm)