Photodiodes

Photodiodes are used in an array of every day electronic devices such as camera's, smoke detectors, burglar alarms, safety equipment, medical applications, CD players and surveying instruments to name a few.

What is a photodiode?

They are used as light sensors or detectors. When light reaches a photodiode, this is converted to electrical energy in the form of an electric current. The photocurrent that is produced is proportional to the amount of light. Photodiodes can also be known as photosensors, photodetectors and light detectors.

Photonic applications use the photon in the same way as electronic applications use the electron. There is usually a small amount of electric current that flows through these photosensitive devices even when no light (photons) are entering it. This is known as dark current.

What are the different types?

The PN photodiode was the first to be developed, it is not so widely used these days due to their relatively low performance compared to newer technologies.

The PIN photodiode has a wider surface area and allows for more light photons to be collected, as well as having a lower capacitance. It is the most widely used diode today.

Avalanche photodiodes are used in areas where there is low light, it operates under a high reverse bias condition. The higher the reverse voltage, the higher the gain.

Schottky photodiode is based on the schottky diode, or shottky barrier diode. It provides additional functions over others, particularly with regards to high speed and long wavelength detection.

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Omschrijving Prijs Spectrums Detected Wavelength of Peak Sensitivity Package Type Mounting Type Number of Pins Diode Material Minimum Wavelength Detected Maximum Wavelength Detected Typical Fall Time Length Width Height Angle of Half Sensitivity Automotive Standard
RS-stocknr. 564-037
FabrikantnummerOSD 35-7X CQ
FabrikantCentronic
€ 118,73
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Ultraviolet 340nm - Through Hole - Si 194nm 400nm - - - 8mm - -
RS-stocknr. 846-755
FabrikantnummerBPX65R(T)
FabrikantCentronic
€ 11,90
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Infrared 850nm TO-18 Through Hole 3 Si - - - 4.7mm 4.7mm 5.17mm 80 ° -
RS-stocknr. 846-777
FabrikantnummerOSD5-5T
FabrikantCentronic
€ 20,78
Each
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Infrared, Visible Light 900nm TO-5 Through Hole - Si 430nm 900nm - - - - - -
RS-stocknr. 846-761
FabrikantnummerOSD1-5T
FabrikantCentronic
€ 13,70
Each
Aantal stuks
Infrared, Visible Light 900nm TO-18 Through Hole - Si 430nm 900nm - - - - - -
RS-stocknr. 304-346
FabrikantnummerBPX65
FabrikantCentronic
€ 11,72
Each
Aantal stuks
Infrared, Ultraviolet, Visible Light 850nm TO-18 Through Hole 2 Si 350nm 1100nm - 5.6mm 5.6mm 5.5mm 40 ° -
RS-stocknr. 194-076
FabrikantnummerOSD15-5T
FabrikantCentronic
€ 32,85
Each
Aantal stuks
Infrared, Visible Light 900nm TO-5 Through Hole - Si 430nm 900nm - - - - - -
RS-stocknr. 846-727
FabrikantnummerOSD100-E
FabrikantCentronic
€ 145,35
Each
Aantal stuks
Visible Light - - Through Hole - Si - - - - - 12.7mm - -
RS-stocknr. 846-749
FabrikantnummerAEPX65
FabrikantCentronic
€ 22,06
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- - TO-46 Through Hole 2 Si - - - 0.9mm 0.9mm 0.63mm - -
RS-stocknr. 846-711
FabrikantnummerOSD50-E
FabrikantCentronic
€ 93,41
Each
Aantal stuks
Visible Light 630nm - Through Hole - Si - - - - - 12.7mm - -
RS-stocknr. 652-027
FabrikantnummerQD7-5T
FabrikantCentronic
€ 39,76
Each
Aantal stuks
Infrared, Visible Light 340nm TO-5 Through Hole - Si 430nm 900nm - - - - - -
RS-stocknr. 564-021
FabrikantnummerOSD5.8-7Q
FabrikantCentronic
€ 43,33
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Aantal stuks
Infrared, Ultraviolet 340nm TO-39 Through Hole 2 Si 1100nm 190nm - 9mm 9mm 6.6mm - -
RS-stocknr. 846-705
FabrikantnummerOSD15-E
FabrikantCentronic
€ 28,97
Each
Aantal stuks
Visible Light 630nm TO-5 Through Hole 3 Si 350nm 800nm - - - 12.7mm - -