S2281-01Si photodiode
S2281-01Si photodiode

Price:   $99.00

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Si photodiode with BNC connector


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.


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

Photosensitive area

φ11.3 mm

Number of elements



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

Measurement condition

Typ. Ta=25 ℃, unless otherwise noted,
Photosensitivity: λ=720 nm, Dark current: VR=10 mV, Terminal capacitance: VR=0 V, f=10 kHz

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