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Si photodiode



For visible to IR, general-purpose photometry

S12915 series have high sensitivity in the visible range to near IR.
They provide higher sensitivity than the S2387 series and can be used in high-humidity environments.

- High sensitivity in visible to infrared range
- Low dark current
- High linearity

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Constitution NEW Conventional product Unit
Type no. S12915-33R S2387-33R -
Window material Plastic potting -
Package 6 × 7.6 mm
Photosensitive area size 2.4 × 2.4 mm
Effective photosensitive area 5.7 mm2
Reverse voltage Max. 30 V
Operating temperature -20 ~ +60
Storage temperature -20 ~ +80
Spectral response range 340 ~ 1100 nm
Peak sensitivity wavelength 960 nm
Photosensitivity Typ. 0.64 0.58 A/W
Short circuit current Typ. 5.7 5.8 μA
Dark current Max. 5 pA
Temp. coefficient of ID 1.12 times/℃
Rise time Typ. 1.6 1.8 μs
Terminal capacitance Typ. 680 730 pF
Shunt resistance Typ. 50
Noise equivalent power 9.0 × 10-16 9.9 × 10-16 W/Hz1/2
Measurement conditions Typ. Ta=25 ℃, Photosensitivity: λ=λp, Dark current: VR=10 mV, Rise time: VR=0 V, f=10 kHz, Shunt resistance: VR=10 mV, Noise equivalent power: VR=0 V, λ=λp, unless otherwise noted

Spectral response


Dark current vs. Reverse voltage


Dimensional outline (unit: mm)


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