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List Price: $10.00
Your Price: $7.50
BG Part Number: DIO1066

C30902EH PDF

High performance Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing.
The Type C30902EH "reach-through" avalanche photodiode provides high responsivity between 400 and 1000 nm as well as extremely fast rise and fall times at all wavelengths. The responsivity of the device is independent of modulation frequency up to about 800 MHz. The detector chip is hermetically-sealed behind a flat glass window in a modified TO-18 package. The useful diameter of the photosensitive surface is 0.5 mm.

Features & Benefits

  • 0.5 mm Si-APD in TO-18 housing
  • High quantum efficiency 77% typical at 830 nm
  • Low Noise at room temperature
  • High responsivity – internal avalanche gains >150
  • Spectral response range – 400 to 1000 nm
  • Time response – typically 0.5 ns
  • Wide operating temperature range -40°C to +70°C
  • Built-in TE-cooler option
  • Various optical input options


  • Analytical and biomedical fluorescence
  • Free space communication
  • Spectrophotometers
  • Photon counting

Active Area

0.2 mm²

Active Diameter

0.5 mm

Dark Current

15/<30 nA




3 fW/√Hz


65 A/W at 900 nm, 77 A/W at 830 nm

Rise/Fall Time

0.5/<0.75 ns

Temperature Coefficient

0.7/<0.9 V/°C


400-1100 nm

Breakdown Voltage

>185 V/<265 V


1.6/<2 pF


TO-18, flat window

Peak Sensitivity Wavelength

830 nm