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 Price 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 Stock No. 177-5576
Mfr. Part No.FCI-INGAAS-1000
PHP7,880.10
Each (In a Tray of 10)
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 900nm 1700nm - - - 3.81mm - -
RS Stock No. 848-6257
Mfr. Part No.FCI-InGaAs-1000
PHP4,947.72
Each
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 900nm 1700nm - - - 3.81mm - -
RS Stock No. 177-6006
Mfr. Part No.SFH 203 P
PHP24.457
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 5mm 75 ° -
RS Stock No. 654-8671
Mfr. Part No.SFH 203 P
PHP58.374
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 5mm 75 ° -
RS Stock No. 168-5299
Mfr. Part No.SFH 203
PHP14.65
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.9mm 4.8mm 9mm 20 ° -
RS Stock No. 654-8154
Mfr. Part No.SFH 203
PHP43.58
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 750nm 1100nm - 5.9mm 4.8mm 9mm 20 ° -
RS Stock No. 773-0418
Mfr. Part No.TEFD4300
BrandVishay
PHP27.683
Each (In a Bag of 10)
units
Infrared 950nm T-1 Through Hole 2 Si 350nm 1120nm - - - 4.5mm ±20 ° -
RS Stock No. 145-1980
Mfr. Part No.TEFD4300
BrandVishay
PHP12.86
Each (In a Bag of 1000)
units
Infrared 950nm - Through Hole 2 Si 350nm 1120nm - - - 4.5mm ±20 ° -
RS Stock No. 124-7160
Mfr. Part No.S5973
PHP1,711.24
Each
units
Infrared, Visible Light 760nm TO-18 Through Hole 3 Si 320nm 1000nm - - - 3.6mm - -
RS Stock No. 497-5661
Mfr. Part No.BPW 21
PHP788.00
Each
units
Infrared, Ultraviolet, Visible Light 550nm TO-39 Through Hole 2 Si 350nm 820nm - 9.5mm 9.5mm 3.7mm 55 ° -
RS Stock No. 168-5245
Mfr. Part No.BPW 21
PHP538.10
Each (In a Box of 40)
units
Infrared, Ultraviolet, Visible Light 550nm TO-39 Through Hole 2 Si 350nm 820nm - 9.5mm 9.5mm 3.7mm 55 ° -
RS Stock No. 124-7163
Mfr. Part No.S4584-06
PHP293.59
Each
units
Infrared 960nm SMD Surface Mount 4 - 320nm 1100nm - 4.1mm 5mm 1.8mm - -
RS Stock No. 912-8573
Mfr. Part No.SFH 213
PHP18.06
Each (In a Bag of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 9mm 10 ° -
RS Stock No. 124-7164
Mfr. Part No.S3274-05
PHP463.80
Each
units
Infrared 960nm DIP Through Hole 4 - 760nm 1100nm - 4.1mm 5mm 1.8mm - -
RS Stock No. 654-8902
Mfr. Part No.SFH 213
PHP54.08
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 9mm 10 ° -
RS Stock No. 627-8366
Mfr. Part No.VTB8440BH
PHP339.14
Each
units
Visible Light 580nm Ceramic Through Hole 2 Si 330nm 720nm - - - 7.87mm - -
RS Stock No. 168-5163
Mfr. Part No.BPW 34
PHP19.367
Each (On a Reel of 1000)
units
Infrared, Visible Light 850nm DIP Through Hole 2 Si 400nm 1100nm - 4.5mm 4mm 2.2mm 60 ° -
RS Stock No. 124-7158
Mfr. Part No.S5971
PHP744.73
Each
units
Infrared, Visible Light 900nm TO-18 Through Hole 3 Si 320nm 1060nm - - - 3.6mm - -
RS Stock No. 247-240
Mfr. Part No.BPW 34
PHP56.232
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm DIP Through Hole 2 Si 400nm 1100nm - 4.5mm 4mm 2.2mm 60 ° -
RS Stock No. 497-5677
Mfr. Part No.BPX 65
PHP325.58
Each
units
Infrared, Ultraviolet, Visible Light 850nm TO-18 Through Hole 2 Si 350nm 1100nm - 5.6mm 5.6mm 5.5mm 40 ° -
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