S2551Si photodiode


Datasheet [439 KB/PDF]

For visible to infrared precision photometry


The S2551 is a Si photodiode having a long photosensitive area of 1.2 × 29.1 mm, designed for visible to infrared precision photometry.


- Long, narrow photosensitive area: 1.2 × 29.1 mm
- High sensitivity
- Low capacitance


Photosensitive area 1.2 × 29.1 mm
Number of elements 1
Package Ceramic
Cooling Non-cooled
Reverse voltage (max.) 30 V
Spectral response range 340 to 1060 nm
Peak sensitivity wavelength (typ.) 920 nm
Photosensitivity (typ.) 0.6 A/W
Dark current (max.) 1000 pA
Rise time (typ.) 1.4 μs
Terminal capacitance (typ.) 350 pF
Measurement condition Typ. Ta=25 ℃, unless otherwise noted,
Photosensitivity: λ=920 nm, Dark current: VR=10 mV, Terminal capacitance: VR=0 V, f=10 kHz

Go to top

Spectral response


Go to top

Dimensional outline (unit: mm)


Go to top

Go to top


The save-to-list function can only work if JavaScript is turned on.

The recently viewed function can only work if JavaScript is turned on.