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. 654-8233
Mfr. Part No.KOM 2125-Z
TWD232.00
Each
units
Infrared, Visible Light 850nm DIP Surface Mount 3 Si 400nm 1100nm - 8.5mm 4.5mm 1.2mm 60 ° -
RS Stock No. 846-755
Mfr. Part No.BPX65R(T)
BrandCentronic
TWD470.00
Each
units
Infrared 850nm TO-18 Through Hole 3 Si - - - 4.7mm 4.7mm 5.17mm 80 ° -
RS Stock No. 912-8564
Mfr. Part No.SFH 213 FA
TWD12.30
Each (In a Bag of 1000)
units
Infrared 900nm - Through Hole 2 Si 750nm 1100nm - 5.9mm 5mm 9mm 10 ° -
RS Stock No. 654-8895
Mfr. Part No.SFH 213 FA
TWD39.60
Each (In a Pack of 5)
units
Infrared 900nm T-1 3/4 Through Hole 2 Si 750nm 1100nm - 5.9mm 5mm 9mm 10 ° -
RS Stock No. 654-8514
Mfr. Part No.BPW 34 B
TWD213.00
Each
units
Infrared, Ultraviolet, Visible Light 850nm DIP Through Hole 2 Si 350nm 1100nm - 4.5mm 4mm 2.2mm 60 ° -
RS Stock No. 177-5568
Mfr. Part No.APD15-8-150-TO5
TWD2,829.20
Each (In a Box of 5)
units
Infrared 800nm TO-5 Through Hole 3 Si 600nm - - - - 4.14mm - -
RS Stock No. 848-6297
Mfr. Part No.APD15-8-150-TO5
TWD3,046.00
Each
units
Infrared 800nm TO-5 Through Hole 3 Si 600nm - - - - 4.14mm - -
RS Stock No. 768-9405
Mfr. Part No.VBPW34S
BrandVishay
TWD38.40
Each (In a Bag of 5)
units
Infrared, Visible Light 940nm GW Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 773-3984
Mfr. Part No.BPV23NF
BrandVishay
TWD34.50
Each (In a Bag of 2)
units
Infrared 940nm - Through Hole 2 Si 790nm 1050nm - - - - ±60 ° -
RS Stock No. 168-5244
Mfr. Part No.SFH 2400 FA-Z
TWD12.70
Each (On a Reel of 2000)
units
Infrared 900nm DIP Surface Mount 3 Si 750nm 1100nm - 2.1mm 2.7mm 1.05mm 60 ° -
RS Stock No. 912-8520
Mfr. Part No.SFH 2430-Z
TWD23.40
Each (On a Reel of 1500)
units
Infrared, Visible Light 570nm DIP Surface Mount 2 Si 400nm 900nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 124-9083
Mfr. Part No.SFH 2200
TWD28.50
Each (In a Pack of 20)
units
- - - - - - - - - - - - - -
RS Stock No. 710-3847
Mfr. Part No.TEMD6200FX01
BrandVishay
TWD25.90
Each (In a Pack of 10)
units
Visible Light 540nm 0805 Surface Mount 2 - 430nm 610nm - 2mm 1.25mm 0.85mm 60 ° -
RS Stock No. 654-8249
Mfr. Part No.SFH 2430-Z
TWD44.20
Each (In a Pack of 5)
units
Infrared, Visible Light 570nm DIP Surface Mount 2 Si 400nm 900nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 654-8069
Mfr. Part No.SFH 205 FA
TWD41.40
Each (In a Pack of 5)
units
Infrared 900nm T-1 3/4 Through Hole 2 Si 740nm 1100nm - 5.1mm 4.1mm 6.9mm 60 ° -
RS Stock No. 168-5294
Mfr. Part No.SFH 205 FA
TWD14.60
Each (On a Tape of 1000)
units
Infrared 900nm - Through Hole 2 Si 740nm 1100nm - 5.1mm 4.1mm 6.9mm 60 ° -
RS Stock No. 124-7160
Mfr. Part No.S5973
TWD1,045.00
Each
units
Infrared, Visible Light 760nm TO-18 Through Hole 3 Si 320nm 1000nm - - - 3.6mm - -
RS Stock No. 710-3828
Mfr. Part No.TEMD5010X01
BrandVishay
TWD52.40
Each (In a Pack of 5)
units
Infrared, Visible Light 940nm - Surface Mount 4 Si 430nm 1100nm - 4.2mm 5mm 1.08mm 65 ° -
RS Stock No. 165-3017
Mfr. Part No.VBP104S
BrandVishay
TWD12.80
Each (On a Reel of 1000)
units
Infrared, Visible Light 940nm GW Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 919-5801
Mfr. Part No.VBPW34S
BrandVishay
TWD13.40
Each (On a Reel of 1000)
units
Infrared, Visible Light 940nm GW Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -