S2281-04Si photodiode


Datasheet [202 KB/PDF]

Si photodiode with BNC connector


The S2281-04 is a Si photodiode sealed in a metal package with a BNC connector. This configuration allows easy connection to Hamamatsu C9329 photosensor amplifier. The large photosensitive area makes S2281-04 well suited for optical power meters. Hamamatsu also provides E2573 BNC-BNC coaxial cable (length: 1 m) as an option.


- Metal package with BNC connector
- High sensitivity
- High reliability


Photosensitive area φ7.98 mm
Number of elements 1
Package With BNC connector
Package category With BNC connector
Cooling Non-cooled
Reverse voltage (max.) 5 V
Spectral response range 190 to 1100 nm
Peak sensitivity wavelength (typ.) 960 nm
Photosensitivity (typ.) 0.5 A/W
Dark current (max.) 500 pA
Rise time (typ.) 3 μs
Terminal capacitance (typ.) 1300 pF
Measurement condition Typ. Ta=25 ℃, unless otherwise noted,
Photosensitivity: λ=960 nm, Dark current: VR=10 mV, Terminal capacitance: VR=0 V, f=10 kHz

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Spectral response


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Dimensional outline (unit: mm)


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