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. 654-8261
Mfr. Part No.BPW 34 SR-Z
TWD19.60
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. 183-7137
Mfr. Part No.PIN-6D
TWD843.90
Each (In a Tray of 10)
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 145-1980
Mfr. Part No.TEFD4300
BrandVishay
TWD8.50
Each (In a Bag of 1000)
units
Infrared 950nm - Through Hole 2 Si 350nm 1120nm - - - 4.5mm ±20 ° -
RS Stock No. 161-2054
Mfr. Part No.VEMD5060X01
BrandVishay
TWD20.70
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. 176-9786
Mfr. Part No.UV-100L
TWD3,640.00
Each
units
- 254nm Low Profile Through Hole 3 Si UV-100L 254nm - - - 4.826mm - -
RS Stock No. 176-4147
Mfr. Part No.SFH 2700
TWD8.90
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. 185-9634
Mfr. Part No.MICRORB-10020-MLP-TR1
TWD2,118.00
Each
units
- - MLP Surface Mount 4 Si 300nm 1050nm - 1.5mm 1.5mm 0.65mm - -
RS Stock No. 654-8902
Mfr. Part No.SFH 213
TWD36.60
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. 848-6275
Mfr. Part No.PIN DL-4
TWD4,208.00
Each
units
- 670nm TO-8 Through Hole 3 Si - - - - - 5.59mm - -
RS Stock No. 168-5299
Mfr. Part No.SFH 203
TWD9.50
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. 919-0979
Mfr. Part No.VBPW34FAS
BrandVishay
TWD14.10
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. 178-6072
Mfr. Part No.OSD15-5T
TWD1,155.00
Each
units
- 900nm TO-5 Through Hole 5 Si 340nm 1100nm - 9.144mm 9.144mm 3.302mm - -
RS Stock No. 177-6006
Mfr. Part No.SFH 203 P
TWD12.90
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. 815-1241
Mfr. Part No.BPV10
BrandVishay
TWD30.20
Each (In a Pack of 20)
units
- - T-1 3/4 Through Hole - - - - - 8.6mm 5mm - - -
RS Stock No. 710-3831
Mfr. Part No.TEMD5110X01
BrandVishay
TWD61.00
Each (In a Pack of 5)
units
Infrared 940nm - Surface Mount 4 Si 790nm 1050nm - 4.2mm 5mm 1.08mm 65 ° -
RS Stock No. 177-5574
Mfr. Part No.PIN-040A
TWD584.80
Each (In a Tray of 10)
units
Infrared 970nm TO-18 Through Hole 3 Si 350nm 1100nm - - - 5.08mm - -
RS Stock No. 2508662319
Mfr. Part No.SLD-68EBG1A
BrandSilonex
TWD425.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 2508662094
Mfr. Part No.SLD-68HL1A
BrandSilonex
TWD152.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 2508662189
Mfr. Part No.SLD-70IR2A
TWD392.00
Each
units
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