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. 183-7138
Mfr. Part No.PIN-6DI
$47.50
Each (In a Tray of 10)
units
Infrared 970nm TO-8 Through Hole 3 Si 350nm 1100nm - - - 0.19in - -
RS Stock No. 846-749
Mfr. Part No.AEPX65
BrandCentronic
$39.69
Each
units
- - TO-46 Through Hole 2 Si - - - 0.9mm 0.9mm 0.63mm - -
RS Stock No. 183-7163
Mfr. Part No.OSD5-0
$29.50
Each
units
Infrared 900nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.13in - -
RS Stock No. 710-3828
Mfr. Part No.TEMD5010X01
BrandVishay
$2.686
Each (In a Pack of 5)
units
Infrared, Visible Light 940nm - Surface Mount 4 Si 430nm 1100nm - 4.2mm 5mm 1.08mm 65 ° -
RS Stock No. 652-027
Mfr. Part No.QD7-5T
BrandCentronic
$53.66
Each
units
Infrared, Visible Light 340nm TO-5 Through Hole - Si 430nm 900nm - - - - - -
RS Stock No. 183-7119
Mfr. Part No.OSD1-0
$23.104
Each (In a Tray of 10)
units
Infrared 900nm TO-18 Through Hole 2 Si 350nm 1100nm - - - 0.2in - -
RS Stock No. 919-0979
Mfr. Part No.VBPW34FAS
BrandVishay
$0.681
Each (On a Reel of 1000)
units
Infrared 950nm GW Surface Mount 2 Si 780nm 1050nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 185-9634
Mfr. Part No.MICRORB-10020-MLP-TR1
$98.92
Each
units
- - MLP Surface Mount 4 Si 300nm 1050nm - 1.5mm 1.5mm 0.65mm - -
RS Stock No. 161-2178
Mfr. Part No.VEMD5080X01
BrandVishay
$2.013
Each (In a Pack of 10)
units
Infrared 950nm QFN Surface Mount 4 Si 350nm - 70ns 5mm 4mm 0.9mm ±65 ° AEC-Q101
RS Stock No. 183-7137
Mfr. Part No.PIN-6D
$46.231
Each (In a Tray of 10)
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 654-8148
Mfr. Part No.BP 104 S-Z
$1.102
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm DIP Surface Mount 2 Si 400nm 1100nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 912-8548
Mfr. Part No.BP 104 FS-Z
$0.474
Each (On a Reel of 1500)
units
Infrared 950nm DIP Surface Mount 2 Si 800nm 1100nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 177-5558
Mfr. Part No.PIN-DL-20C
$1,708.055
Each (In a Box of 2)
units
- 670nm - Through Hole 4 Si - - - 37.97mm 34.04mm 3.05mm - -
RS Stock No. 699-7600
Mfr. Part No.BPV22F
BrandVishay
$1.848
Each (In a Pack of 5)
units
Infrared 950nm - Through Hole 2 Si 870nm 1050nm - 4.5mm 5mm 6mm 60 ° -
RS Stock No. 165-6174
Mfr. Part No.BPW46
BrandVishay
$0.625
Each (In a Bag of 1000)
units
- - - Through Hole - - - - - 5mm 3mm 6.4mm - -
RS Stock No. 183-7118
Mfr. Part No.FCI-InGaAs-3000-20
$459.627
Each (In a Tray of 10)
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 1100nm 1620nm - - - 4.7mm - -
RS Stock No. 654-8249
Mfr. Part No.SFH 2430-Z
$2.31
Each (In a Pack of 5)
units
Infrared, Visible Light 570nm DIP Surface Mount 2 Si 400nm 900nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 184-6980
Mfr. Part No.1540051EA3590
$0.543
Each (In a Bag of 500)
units
- 940nm 5 Through Hole 2 Si 400nm 1100nm - 5mm 5mm 8.7mm 35 ° -
RS Stock No. 165-6173
Mfr. Part No.BPV10
BrandVishay
$0.598
Each (In a Bag of 1000)
units
- - T-1 3/4 Through Hole - - - - - 8.6mm 5mm - - -
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