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. 124-7159
Mfr. Part No.S5972
$16.76
Each
units
Infrared, Visible Light 800nm TO-18 Through Hole 3 Si 320nm 1000nm - - - 3.6mm - -
RS Stock No. 183-7119
Mfr. Part No.OSD1-0
$23.34
Each (In a Tray of 10)
units
Infrared 900nm TO-18 Through Hole 2 Si 350nm 1100nm - - - 0.2in - -
RS Stock No. 183-7142
Mfr. Part No.PIN-SPOT4DMI
$57.07
Each (In a Tray of 10)
units
- 970nm TO-5 Through Hole 3 Si 350nm 1100nm - - - 0.11in - -
RS Stock No. 165-3014
Mfr. Part No.VBP104FAS
BrandVishay
$0.643
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. 177-5570
Mfr. Part No.APD05-8-150-T52L
$245.126
Each (In a Box of 5)
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.8mm - -
RS Stock No. 184-1889
Mfr. Part No.PIN-020A
$34.20
Each
units
Infrared 970nm TO-18 Through Hole 3 Si 350nm 1100nm - - - 0.2in - -
RS Stock No. 185-9622
Mfr. Part No.MICROFJ-30020-TSV-TR1
$104.70
Each
units
- - SMT Surface Mount 4 Si 200nm 900nm - 3.16mm 3.16mm 0.46mm - -
RS Stock No. 183-7122
Mfr. Part No.OSD60-0
$120.60
Each (In a Tray of 10)
units
Infrared 900nm TO-8 Through Hole 3 Si 350nm 1100nm - - - 0.17in - -
RS Stock No. 161-2180
Mfr. Part No.VEMD5110X01
BrandVishay
$1.92
Each (In a Pack of 10)
units
Infrared 940nm QFN Surface Mount 4 Si 790nm - 100ns 5mm 4mm 0.9mm ±65 ° AEC-Q101
RS Stock No. 165-2706
Mfr. Part No.TEMD7100X01
BrandVishay
$0.516
Each (On a Reel of 3000)
units
Infrared 950nm 0805 Surface Mount 2 Si 750nm 1050nm - 2mm 1.25mm 0.85mm 60 ° -
RS Stock No. 768-9382
Mfr. Part No.VBP104FAS
BrandVishay
$1.854
Each (On a Tape of 5)
units
Infrared 950nm GW Surface Mount 2 Si 780nm 1050nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 161-2054
Mfr. Part No.VEMD5060X01
BrandVishay
$1.089
Each (On a Reel of 1000)
units
Infrared 820nm QFN Surface Mount 4 Si 350nm - 30ns 5mm 4mm 0.9mm ±65 ° AEC-Q101
RS Stock No. 124-7164
Mfr. Part No.S3274-05
$12.15
Each
units
Infrared 960nm DIP Through Hole 4 - 760nm 1100nm - 4.1mm 5mm 1.8mm - -
RS Stock No. 654-8788
Mfr. Part No.SFH 2505
$0.92
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm SMR Through Hole 2 Si 400nm 1100nm - 6mm 4.8mm 7.7mm 15 ° -
RS Stock No. 699-7701
Mfr. Part No.VEMD2020X01
BrandVishay
$1.121
Each (In a Pack of 20)
units
Infrared 940nm Subminiature Surface Mount 2 Si 750nm 1050nm - 2.3mm 2.3mm 2.77mm 15 ° -
RS Stock No. 183-7175
Mfr. Part No.PIN-44D
$85.60
Each
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 183-7139
Mfr. Part No.PIN-SPOT2D
$33.71
Each (In a Tray of 10)
units
- 970nm TO-5 Through Hole 3 Si 350nm 1100nm - - - 0.11in - -
RS Stock No. 183-7127
Mfr. Part No.PIN-44DP
$74.54
Each (In a Tray of 10)
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 165-2707
Mfr. Part No.TEMD6200FX01
BrandVishay
$0.845
Each (On a Reel of 3000)
units
Visible Light 540nm 0805 Surface Mount 2 - 430nm 610nm - 2mm 1.25mm 0.85mm 60 ° -
RS Stock No. 699-7597
Mfr. Part No.BP104
BrandVishay
$1.964
Each (In a Pack of 5)
units
Infrared 950nm - Through Hole 2 Si 870nm 1050nm - 4.65mm 4.3mm 2mm 65 ° -
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