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. 201-9550
FabrikantnummerSFH 2703
€ 1.154,39
1 Reel of 3000
Reel(s)
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€ 215,23
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- - - - - - - - - - - - - -
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FabrikantnummerILH-K12729-010K-SC201-WIR200.
€ 1.368,83
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FabrikantnummerVBPW34SR
FabrikantVishay
€ 0,372
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Infrared, Visible Light 940nm Reverse Gullwing Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -
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- 950nm DIL Surface Mount 2 Si - 950nm 0.02µs 4.5mm 4mm 1.2mm ±60 ° -
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FabrikantVishay
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FabrikantON Semiconductor
€ 45,48
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€ 16,18
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Infrared 970nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS-stocknr. 206-5757
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FabrikantVishay
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- 910nm 0805 Surface Mount 2 Si - - - - - - 55 ° -
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FabrikantVishay
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Infrared 950nm Side Looker Through Hole 2 Si 870nm 1050nm - 5mm 3mm 6.4mm 65 ° -
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FabrikantnummerPIN-RD07
€ 75,33
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Visible Light 900nm TO-8 Through Hole 3 Si 350nm 1100nm - - - 5.1054mm - -
RS-stocknr. 177-5579
FabrikantnummerFCI-INGAAS-Q3000
€ 447,984
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- 1550nm TO-8 Through Hole 8 InGaAs 1100nm 1620nm - - - 6.6mm - -
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FabrikantVishay
€ 0,882
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Infrared 950nm Side Looker Through Hole 2 Si 870nm 1050nm - 5mm 3mm 6.4mm 65 ° -
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FabrikantVishay
€ 0,914
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Infrared, Visible Light 940nm GW Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS-stocknr. 161-2161
FabrikantnummerVEMD1060X01
FabrikantVishay
€ 0,479
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Infrared 820nm 0805 Surface Mount 2 Si 350nm - 80ns 2mm 1.25mm 0.85mm ±70 ° AEC-Q101
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FabrikantnummerVEMD1160X01
FabrikantVishay
€ 0,275
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- 840nm 0805 Surface Mount 2 Si 700nm - 80ns 2mm 1.25mm 0.85mm ±70 ° AEC-Q101
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FabrikantVishay
€ 0,974
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Infrared 950nm GW Surface Mount 2 Si 780nm 1050nm - 4.4mm 3.9mm 1.2mm ±65 ° -
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