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Si PIN photodiode S3994-01

Si PIN photodiode S3994-01

Product catalog summary

Overview: The S3994-01 is a silicon PIN photodiode designed specifically for optical power meters. It features a flat glass light input window that is more resistant to scratches compared to resin windows, facilitating easier handling. The device is housed in a thin package with a maximum thickness of 1.4 mm.

Key Features:

High sensitivity of 0.25 A/W at 400 nm.
Large photosensitive area measuring 10 x 10 mm.

Applications: Primarily used in optical power meters.

Absolute Maximum Ratings:

Reverse Voltage (VR max): 50 V
Operating Temperature (Topr): -20 to +60 °C
Storage Temperature (Tstg): -20 to +80 °C

Electrical and Optical Characteristics (at 25 °C):

Spectral Response Range: 320 to 1100 nm
Peak Sensitivity Wavelength: 960 nm
Photosensitivity: 0.20 to 0.25 A/W at 400 nm, 0.54 to 0.65 A/W at peak wavelength
Dark Current: 3 to 10 nA at VR=30 V
Terminal Capacitance: 40 pF at VR=30 V, f=1 MHz
Cutoff Frequency: 20 MHz at VR=30 V, RL=50 Ω

Graphical Data:

Spectral response graph shows photosensitivity across wavelengths from 300 to 1100 nm.
Terminal capacitance and dark current graphs illustrate their dependence on reverse voltage.

Dimensional Outline: The photodiode has a photosensitive area of 10 x 10 mm, with a maximum thickness of 1.4 mm. The package includes glass, resin, and ceramic materials.

Additional Information: Product specifications are subject to change, and the warranty is valid for one year post-delivery, covering repair or replacement for defects. The document also includes contact information for Hamamatsu Photonics offices worldwide.

Catalog excerpts

Si PIN photodiode for optical power meters The S3994-01 is a Si PIN photodiode designed for optical power meters. The ﬂat glass used as the light input window is less susceptible to scratches than resin windows, allowing easy handling. Optical power meters High sensitivity: 0.25 A/W typ. (λ=400 nm) Large photosensitive area: 10 × 10 mm Absolute maximum ratings (Ta=25 °C) Parameter Reverse voltage Operating temperature Storage temperature Symbol VR max Topr Tstg Electrical and optical characteristics (Ta=25 °C) Parameter Spectral response range Peak sensitivity wavelength Dark current Terminal capacitance Cutoff frequency

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Spectral response Dark current vs. reverse voltage (Typ. Ta=25 °C) Dark current Terminal capacitance vs. reverse voltage (Typ. Ta=25 °C) Terminal capacitance

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Dimensional outline (unit: mm) 15.0 ± 0.5 Glass 10.5 10.0 Photosensitive area Photosensitive surface Information described in this material is current as of January, 2012. Product specifications are subject to change without prior notice due to improvements or other reasons. Before assembly into final products, please contact us for the delivery specification sheet to check the latest information. Type numbers of products listed in the delivery specification sheets or supplied as samples may have a suffix "(X)" which means preliminary specifications or a suffix "(Z)" which means developmental...

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