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. 124-7165
Mfr. Part No.S5629
TWD314.00
Each
units
Infrared 960nm SMD Surface Mount 20 - 760nm 1100nm - 9.7mm 5.4mm 1.7mm - -
RS Stock No. 177-5570
Mfr. Part No.APD05-8-150-T52L
TWD3,171.80
Each (In a Box of 5)
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.8mm - -
RS Stock No. 848-6291
Mfr. Part No.APD10-8-150-T52
TWD2,701.00
Each
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.25mm - -
RS Stock No. 177-5579
Mfr. Part No.FCI-INGAAS-Q3000
TWD16,399.80
Each (In a Tray of 5)
units
- 1550nm TO-8 Through Hole 8 InGaAs 1100nm 1620nm - - - 6.6mm - -
RS Stock No. 846-777
Mfr. Part No.OSD5-5T
BrandCentronic
TWD742.00
Each
units
Infrared, Visible Light 900nm TO-5 Through Hole - Si 430nm 900nm - - - - - -
RS Stock No. 168-7920
Mfr. Part No.IS471FE
BrandSharp
TWD70.90
Each (In a Bag of 500)
units
Infrared 800 → 900nm - - 4 - 700nm 1150nm - - - - - -
RS Stock No. 564-021
Mfr. Part No.OSD5.8-7Q
BrandCentronic
TWD1,470.00
Each
units
Infrared, Ultraviolet 340nm TO-39 Through Hole 2 Si 1100nm 190nm - 9mm 9mm 6.6mm - -
RS Stock No. 168-5300
Mfr. Part No.KOM 2125-Z
TWD136.70
Each (On a Reel of 1400)
units
Infrared, Visible Light 850nm DIP Surface Mount 3 Si 400nm 1100nm - 8.5mm 4.5mm 1.2mm 60 ° -
RS Stock No. 654-8233
Mfr. Part No.KOM 2125-Z
TWD220.00
Each
units
Infrared, Visible Light 850nm DIP Surface Mount 3 Si 400nm 1100nm - 8.5mm 4.5mm 1.2mm 60 ° -
RS Stock No. 564-037
Mfr. Part No.OSD 35-7X CQ
BrandCentronic
TWD2,691.00
Each
units
Ultraviolet 340nm - Through Hole - Si 194nm 400nm - - - 8mm - -
RS Stock No. 654-9034
Mfr. Part No.SFH 235 FA
TWD43.20
Each (In a Pack of 5)
units
Infrared 900nm T-1 3/4 Through Hole 2 Si 740nm 1120nm - 5.1mm 3.1mm 7.2mm 65 ° -
RS Stock No. 826-4625
Mfr. Part No.IS471FE
BrandSharp
TWD140.00
Each (In a Pack of 5)
units
Infrared 800 → 900nm - - 4 - 700nm 1150nm - - - - - -
RS Stock No. 145-2618
Mfr. Part No.BPW20RF
BrandVishay
TWD155.40
Each (In a Bag of 500)
units
Infrared, Visible Light 920nm TO-5 Through Hole 2 Si 400nm 1100nm - 9.1mm 9.1mm 3.1mm 50 ° -
RS Stock No. 177-5567
Mfr. Part No.APD10-8-150-T52
TWD3,331.00
Each (In a Box of 5)
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.25mm - -
RS Stock No. 170-9644
Mfr. Part No.BPW 34 FSR-Z
TWD15.20
Each (On a Reel of 1500)
units
- 950nm DIL Surface Mount 2 Si - 950nm 0.02µs 4.5mm 4mm 1.2mm ±60 ° -
RS Stock No. 848-6301
Mfr. Part No.APD05-8-150-T52L
TWD2,766.00
Each
units
Infrared 800nm TO-52 Through Hole 3 Si 600nm - - - - 3.8mm - -
RS Stock No. 708-2804
Mfr. Part No.BPW20RF
BrandVishay
TWD220.00
Each
units
Infrared, Visible Light 920nm TO-5 Through Hole 2 Si 400nm 1100nm - 9.1mm 9.1mm 3.1mm 50 ° -
RS Stock No. 915-4869
Mfr. Part No.BPW 34 FSR-Z
TWD23.00
Each (In a Pack of 20)
units
- 950nm DIL Surface Mount 2 Si - 950nm 0.02µs 4.5mm 4mm 1.2mm ±60 ° -
RS Stock No. 846-755
Mfr. Part No.BPX65R(T)
BrandCentronic
TWD494.00
Each
units
Infrared 850nm TO-18 Through Hole 3 Si - - - 4.7mm 4.7mm 5.17mm 80 ° -
RS Stock No. 168-5319
Mfr. Part No.SFH 235 FA
TWD15.10
Each (In a Bag of 1000)
units
Infrared 900nm - Through Hole 2 Si 740nm 1120nm - 5.1mm 3.1mm 7.2mm 65 ° -