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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Description Prix 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
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Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 9mm 10 ° -
N° de stock RS 708-2816
Référence fabricantBPW24R
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Infrared, Visible Light 900nm TO-18 Through Hole 2 Si 600nm 1050nm - 5.5mm 5.5mm 6.15mm 12 ° -
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Infrared 900nm T-1 3/4 Through Hole 2 Si 800nm 1100nm - 5.9mm 5.9mm 9mm 20 ° -
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Infrared 950nm Side Looker Through Hole 2 Si 870nm 1050nm - 5mm 3mm 6.4mm 65 ° -
N° de stock RS 654-8233
Référence fabricantKOM 2125-Z
5,67 €
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Infrared, Visible Light 850nm DIP Surface Mount 3 Si 400nm 1100nm - 8.5mm 4.5mm 1.2mm 60 ° -
N° de stock RS 304-346
Référence fabricantBPX65
MarqueCentronic
11,72 €
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Infrared, Ultraviolet, Visible Light 850nm TO-18 Through Hole 2 Si 350nm 1100nm - 5.6mm 5.6mm 5.5mm 40 ° -
N° de stock RS 768-9414
Référence fabricantVBPW34SR
MarqueVishay
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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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Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 9mm 10 ° -
N° de stock RS 846-755
Référence fabricantBPX65R(T)
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N° de stock RS 168-5245
Référence fabricantBPW 21
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Infrared, Ultraviolet, Visible Light 550nm TO-39 Through Hole 2 Si 350nm 820nm - 9.5mm 9.5mm 3.7mm 55 ° -
N° de stock RS 654-8659
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0,628 €
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Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 400nm 1100nm - 5.1mm 4.1mm 6.9mm 60 ° -
N° de stock RS 654-8053
Référence fabricantSFH 229 FA
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Infrared 900nm T-1 Through Hole 2 Si 730nm 1100nm 10ns 4mm 3mm 5.2mm ±17 ° -
N° de stock RS 177-5573
Référence fabricantUV-035EQ
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Ultraviolet 720nm TO-8 Through Hole 2 Si - - - - - 5.21mm - -
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Référence fabricantSFH 229 FA
0,252 €
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Infrared 900nm - Through Hole 2 Si 730nm 1100nm 10ns 4mm 3mm 5.2mm ±17 ° -
N° de stock RS 710-3847
Référence fabricantTEMD6200FX01
MarqueVishay
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Visible Light 540nm 0805 Surface Mount 2 - 430nm 610nm - 2mm 1.25mm 0.85mm 60 ° -
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Référence fabricantBPX 61
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Infrared, Visible Light 850nm TO-5 Through Hole 2 Si 400nm 1100nm - 9.5mm 9.5mm 3.7mm 55 ° -
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Référence fabricantBP104
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Infrared, Visible Light 900nm TO-18 Through Hole 2 Si 600nm 1050nm - 5.5mm 5.5mm 6.15mm 12 ° -
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Référence fabricantBPX 61
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Infrared, Visible Light 850nm TO-5 Through Hole 2 Si 400nm 1100nm - 9.5mm 9.5mm 3.7mm 55 ° -