Description

The S2281 is a Si photodiode sealed in a metal package with a BNC connector. This configuration allows easy connection to Hamamatsu C9329-01 photosensor amplifier. The large photosensitive area makes the S2281 well suited for optical power meters. Hamamatsu also provides E2573 BNC-BNC coaxial cable (length: 1 m) as an option.

Features
– Metal package with BNC connector
– High sensitivity
– High reliability

Specifications

Photosensitive area	φ11.3 mm
Package	Metal
Package category	—
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
Noise equivalent power (typ.)	1.8×10^-14 W/Hz^1/2
Measurement condition	Typ. Ta=25 ℃, Photosensitivity: λ=960 nm, Dark current: V_R=10 mV, Terminal capacitance: V_R=0 V, f=10 kHz, Noise equivalent power: V_R=0 V, λ=λp, unless otherwise noted