DH_Si Photodiode (200-1100nm)

  • DH_SI Silicon Detector
  • DH_SI Si Detector
  • DH_SI Quick Change Adaptor
  • DH_SI Quick Change Adaptor

Housing a 10x10mm active area silicon photodiode (200-1100nm), the DH_Si is operated in the photovoltaic mode. The photocurrent generated by this detector is best measured using the 487 picoammeter or the 477 pre-amplifier followed by the 496 lock-in amplifier.

The mounting flange supplied with the DH_Si is compatible with the entire range of Bentham monochromators and accessories. A quick-change variant is also available.

Core benefits


  • Housed UV-enhanced silicon photodiode
  • Operated in either the DC or AC regimes
  • Compatible with Bentham's entire range of monochromators and accessories
  • Suitable for free standing applications
  • Recommended for use with 400 series detection electronics


Active area10 x 10mm
Window materialQuartz
Spectral response range200-1100nm
Operating modePhotovoltaic
Dark current (typ.)<1pA
Shunt Resistance (typ.)0.2GΩ
Peak wavelength (typ.)960nm
Peak responsivity (typ.)0.52 A.W-1
NEP1.8 x 10-14 W.Hz-1/2
Temperature dependence of responsivityUp to 1%/ °C (λ > 950nm)
Max. photocurrent2mA
Max. operating Temperature-20 to +60°C


Compatibility4 x M3 clearance holes (Bentham slit pattern)
Dimensions80L x 50W x 42H (mm)


DH_SISilicon photodiode
DH_SI_QCSilicon photodiode, quick change interface
DH_SI Dimensions - Top View
DH_SI Dimensions - Top View
DH_SI Dimensions - Side View
DH_SI Dimensions - Side View
DH_Si Silicon Detector Typical Responsivity
DH_Si Typical Responsivity

Ordering Information

DH_SIUV enhanced silicon photodiode
DH_SI_QCUV enhanced silicon photodiode, quick change interface

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