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 Spectral Range of Sensitivity Diode Material Minimum Wavelength Detected Maximum Wavelength Detected Typical Fall Time Length Width Height Dimensions
RS Stock No. 168-5299
Mfr. Part No.SFH 203
$0.447
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 - Si 400nm 1100nm - 5.9mm 4.8mm 9mm -
RS Stock No. 654-8154
Mfr. Part No.SFH 203
$0.926
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 -
RS Stock No. 699-7616
Mfr. Part No.BPW34
BrandVishay
$1.22
Each (In a Pack of 5)
units
Infrared, Visible Light 900nm - Through Hole 2 - Si 430nm 1100nm - 4.5mm 4.3mm 2mm -
RS Stock No. 165-2428
Mfr. Part No.BPW34
BrandVishay
$0.589
Each (On a Reel of 3000)
units
Infrared, Visible Light 900nm - Through Hole 2 - Si 430nm 1100nm - 4.5mm 4.3mm 2mm -
RS Stock No. 846-705
Mfr. Part No.OSD15-E
BrandCentronic
$47.06
Each
units
Visible Light 630nm TO-5 Through Hole 3 - Si 350nm 800nm - - - 12.7mm -
RS Stock No. 168-5245
Mfr. Part No.BPW 21
$12.366
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 -
RS Stock No. 497-5661
Mfr. Part No.BPW 21
$15.69
Each
units
Infrared, Ultraviolet, Visible Light 550nm TO-39 Through Hole 2 - Si 350nm 820nm - 9.5mm 9.5mm 3.7mm -
RS Stock No. 846-711
Mfr. Part No.OSD50-E
BrandCentronic
$82.25
Each
units
Visible Light 630nm - Through Hole - - Si - - - - - 12.7mm -
RS Stock No. 654-8671
Mfr. Part No.SFH 203 P
$1.182
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 -
RS Stock No. 415-5722
Mfr. Part No.S1223-01
$28.31
Each
units
Infrared, Ultraviolet, Visible Light 960nm TO-5 Through Hole 2 - Si 320nm 1100nm - 9.1mm 9.1mm 4.1mm -
RS Stock No. 177-6006
Mfr. Part No.SFH 203 P
$0.482
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 - Si 400nm 1100nm - 5.9mm 5mm 5mm -
RS Stock No. 177-5563
Mfr. Part No.PIN-UV-100DQC
$395.24
Each (In a Box of 2)
units
Ultraviolet 980nm Ceramic Through Hole 2 - Si 190nm 1100nm - 16.51mm 14.99mm 2.03mm -
RS Stock No. 848-6294
Mfr. Part No.PIN-UV-100DQC
$205.18
Each
units
Ultraviolet 980nm Ceramic Through Hole 2 - Si 190nm 1100nm - 16.51mm 14.99mm 2.03mm -
RS Stock No. 627-8366
Mfr. Part No.VTB8440BH
$6.70
Each
units
Visible Light 580nm Ceramic Through Hole 2 - Si 330nm 720nm - - - 7.87mm -
RS Stock No. 247-240
Mfr. Part No.BPW 34
$1.336
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm DIP Through Hole 2 - Si 400nm 1100nm - 4.5mm 4mm 2.2mm -
RS Stock No. 846-727
Mfr. Part No.OSD100-E
BrandCentronic
$214.27
Each
units
Visible Light - - Through Hole - - Si - - - - - 12.7mm -
RS Stock No. 177-5570
Mfr. Part No.APD05-8-150-T52L
$220.834
Each (In a Box of 5)
units
Infrared 800nm TO-52 Through Hole 3 - Si 600nm - - - - 3.8mm -
RS Stock No. 848-6301
Mfr. Part No.APD05-8-150-T52L
$94.64
Each
units
Infrared 800nm TO-52 Through Hole 3 - Si 600nm - - - - 3.8mm -
RS Stock No. 168-5163
Mfr. Part No.BPW 34
$0.589
Each (On a Reel of 1000)
units
Infrared, Visible Light 850nm DIP Through Hole 2 - Si 400nm 1100nm - 4.5mm 4mm 2.2mm -
RS Stock No. 773-0418
Mfr. Part No.TEFD4300
BrandVishay
$0.752
Each (In a Bag of 10)
units
Infrared 950nm T-1 Through Hole 2 - Si 350nm 1120nm - - - 4.5mm -
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