The S2281-01 is a Si photodiode sealed in a metal package with a BNC connector. This configuration allows easy connection to Hamamatsu C9329 photosensor amplifier (S2281-01 has a large terminal capacitance which may cause a gain peaking to occur when C9329 is used with the gain set to the "M" range.). The large photosensitive area makes the S2281-01 well suited for optical power meters. Hamamatsu also provides E2573 BNC-BNC coaxial cable (length: 1 m) as an option.
|Photosensitive area||φ11.3 mm|
|Number of elements||1|
|Package||With BNC connector|
|Package category||With BNC connector|
|Reverse voltage (max.)||5 V|
|Spectral response range||190 to 1000 nm|
|Peak sensitivity wavelength (typ.)||720 nm|
|Photosensitivity (typ.)||0.36 A/W|
|Dark current (max.)||300 pA|
|Rise time (typ.)||7 μs|
|Terminal capacitance (typ.)||3200 pF|
|Noise equivalent power (typ.)||8.6×10-15 W/Hz1/2|
|Measurement condition||Typ. Ta=25 ℃, Photosensitivity: λ=960 nm, Dark current: VR=10 mV, Terminal capacitance: VR=0 V, f=10 kHz, Noise equivalent power: VR=0 V, λ=λp, unless otherwise noted|
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