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. 848-6281
Mfr. Part No.UV-035EQ
$73.94
Each
units
Ultraviolet 720nm TO-8 Through Hole 2 Si - - - - - 5.21mm - -
RS Stock No. 177-5573
Mfr. Part No.UV-035EQ
$123.474
Each (In a Tray of 5)
units
Ultraviolet 720nm TO-8 Through Hole 2 Si - - - - - 5.21mm - -
RS Stock No. 165-2577
Mfr. Part No.BPV10NF
BrandVishay
$0.566
Each (In a Bag of 1000)
units
Infrared 940nm - Through Hole 2 Si 790nm 1050nm - 5.75mm 5.75mm 8.6mm 20 ° -
RS Stock No. 177-5576
Mfr. Part No.FCI-INGAAS-1000
$175.67
Each (In a Tray of 10)
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 900nm 1700nm - - - 3.81mm - -
RS Stock No. 805-0539
Mfr. Part No.QSD2030F
$0.604
Each (In a Pack of 25)
units
- 880nm T-1 3/4 Through Hole 2 Si 700nm 1100nm - - - 8.77mm 20 ° -
RS Stock No. 168-5312
Mfr. Part No.SFH 206 K
$0.914
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.1mm 4.1mm 6.9mm 60 ° -
RS Stock No. 654-8659
Mfr. Part No.SFH 206 K
$1.11
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 400nm 1100nm - 5.1mm 4.1mm 6.9mm 60 ° -
RS Stock No. 848-6257
Mfr. Part No.FCI-InGaAs-1000
$131.61
Each
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 900nm 1700nm - - - 3.81mm - -
RS Stock No. 564-021
Mfr. Part No.OSD5.8-7Q
BrandCentronic
$70.01
Each
units
Infrared, Ultraviolet 340nm TO-39 Through Hole 2 Si 1100nm 190nm - 9mm 9mm 6.6mm - -
RS Stock No. 124-7160
Mfr. Part No.S5973
$47.09
Each
units
Infrared, Visible Light 760nm TO-18 Through Hole 3 Si 320nm 1000nm - - - 3.6mm - -
RS Stock No. 497-5677
Mfr. Part No.BPX 65
$9.35
Each
units
Infrared, Ultraviolet, Visible Light 850nm TO-18 Through Hole 2 Si 350nm 1100nm - 5.6mm 5.6mm 5.5mm 40 ° -
RS Stock No. 912-8306
Mfr. Part No.BPX 65
$5.43
Each (In a Tray of 120)
units
Infrared 850nm TO-18 Through Hole 2 Si 350nm 1100nm 0.012µs - 5.5mm - ±40 ° -
RS Stock No. 699-7607
Mfr. Part No.BPV10NF
BrandVishay
$1.24
Each (In a Pack of 10)
units
Infrared 940nm T-1 3/4 Through Hole 2 Si 790nm 1050nm - 5.75mm 5.75mm 8.6mm 20 ° -
RS Stock No. 146-2108
Mfr. Part No.QSD2030F
$0.356
Each (In a Bag of 250)
units
- 880nm - Through Hole 2 Si 700nm 1100nm - - - 8.77mm 20 ° -
RS Stock No. 177-5558
Mfr. Part No.PIN-DL-20C
$1,552.775
Each (In a Box of 2)
units
- 670nm - Through Hole 4 Si - - - 37.97mm 34.04mm 3.05mm - -
RS Stock No. 848-6244
Mfr. Part No.PIN-DL-20C
$1,014.49
Each
units
- 670nm - Through Hole 4 Si - - - 37.97mm 34.04mm 3.05mm - -
RS Stock No. 846-749
Mfr. Part No.AEPX65
BrandCentronic
$36.08
Each
units
- - TO-46 Through Hole 2 Si - - - 0.9mm 0.9mm 0.63mm - -
RS Stock No. 912-8318
Mfr. Part No.BPW 34 S-Z
$0.792
Each (On a Reel of 1500)
units
Infrared 850nm Smart DIL Surface Mount 2 Si 400nm 1100nm 0.02µs 4.5mm 3.7mm 1.2mm ±60 ° -
RS Stock No. 652-0207
Mfr. Part No.BPW 34 S-Z
$1.858
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. 168-7920
Mfr. Part No.IS471FE
BrandSharp
$3.13
Each (In a Bag of 500)
units
Infrared 800 → 900nm - - 4 - 700nm 1150nm - - - - - -
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