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. 176-4147
Mfr. Part No.SFH 2700
$0.429
Each (On a Reel of 3000)
units
Infrared 1100nm Chip LED Surface Mount 2 Si 300nm 1100nm 0.12µs 2mm 1.25mm 0.8mm 70 ° -
RS Stock No. 184-6978
Mfr. Part No.1541201EEA400
$0.514
Each (On a Reel of 3000)
units
Infrared 940nm 1206 Surface Mount 2 Si 700nm 1100nm - 3.2mm 1.6mm 1.1mm 140 ° -
RS Stock No. 184-6980
Mfr. Part No.1540051EA3590
$0.494
Each (In a Bag of 500)
units
- 940nm 5 Through Hole 2 Si 400nm 1100nm - 5mm 5mm 8.7mm 35 ° -
RS Stock No. 184-7261
Mfr. Part No.1541201EEA400
$0.722
Each (In a Pack of 25)
units
Infrared 940nm 1206 Surface Mount 2 Si 700nm 1100nm - 3.2mm 1.6mm 1.1mm 140 ° -
RS Stock No. 183-7131
Mfr. Part No.PIN-10DP
$134.87
Each (In a Tray of 10)
units
Infrared 970nm BNC Surface Mount 1 Si 350nm 1100nm - - - 1.03in - -
RS Stock No. 919-0988
Mfr. Part No.VBPW34SR
BrandVishay
$0.696
Each (On a Reel of 1000)
units
Infrared, Visible Light 940nm Reverse Gullwing Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 176-4204
Mfr. Part No.SFH 2700 FA
$1.09
Each (In a Pack of 20)
units
Infrared 1100nm Chip LED Surface Mount 2 Si 700nm 1100nm 0.12µs 2mm 1.25mm 0.8mm 60 ° -
RS Stock No. 176-9789
Mfr. Part No.PIN-RD07
$249.66
Each
units
Visible Light 900nm TO-8 Through Hole 3 Si 350nm 1100nm - - - 5.1054mm - -
RS Stock No. 183-7167
Mfr. Part No.OSD15-0
$34.83
Each
units
Infrared 900nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.13in - -
RS Stock No. 848-6291
Mfr. Part No.APD10-8-150-T52
$114.51
Each
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.25mm - -
RS Stock No. 183-7143
Mfr. Part No.UV-035DQC
$112.765
Each (In a Tray of 10)
units
Ultraviolet 980nm Ceramic Through Hole 2 Si - - - 0.4in - 0.08in - -
RS Stock No. 176-9787
Mfr. Part No.PIN-RD100
$195.54
Each
units
Visible Light 950nm Ceramic Through Hole 2 Si 350nm 1100nm - 16.51mm 14.986mm 2.032mm - -
RS Stock No. 183-7163
Mfr. Part No.OSD5-0
$26.82
Each
units
Infrared 900nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.13in - -
RS Stock No. 176-9790
Mfr. Part No.PIN-RD15
$319.75
Each
units
Visible Light 900nm TO-8 Through Hole 3 Si 350nm 1100nm - - - 5.1054mm - -
RS Stock No. 768-9401
Mfr. Part No.VBPW34FASR
BrandVishay
$1.82
Each (In a Bag of 5)
units
Infrared 950nm Reverse Gullwing Surface Mount 2 Si 780nm 1050nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 177-5567
Mfr. Part No.APD10-8-150-T52
$132.192
Each (In a Box of 5)
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.25mm - -
RS Stock No. 184-1647
Mfr. Part No.PIN-3CDI
$21.004
Each (In a Tray of 10)
units
- - - - - - - - - - - - - -
RS Stock No. 183-7133
Mfr. Part No.PIN-5DP
$28.01
Each (In a Tray of 10)
units
Infrared 970nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS Stock No. 699-7610
Mfr. Part No.BPW41N
BrandVishay
$1.63
Each (In a Pack of 5)
units
Infrared 950nm Side Looker Through Hole 2 Si 870nm 1050nm - 5mm 3mm 6.4mm 65 ° -
RS Stock No. 654-8794
Mfr. Part No.SFH 2500 FA-Z
$0.87
Each (In a Pack of 5)
units
Infrared 900nm SMR Surface Mount 2 Si 750nm 1100nm - 7.7mm 6mm 6mm 15 ° -
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