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 Amplifier Function Mounting Type Number of Pins Diode Material Minimum Wavelength Detected Maximum Wavelength Detected Typical Fall Time Length Width Height Angle of Half Sensitivity
RS Stock No. 177-5573
Mfr. Part No.UV-035EQ
kr 622,192
Each (In a Tray of 5)
Units
Ultraviolet 720nm TO-8 No Through Hole 2 Si - - - - - 5.21mm -
RS Stock No. 848-6281
Mfr. Part No.UV-035EQ
kr 654,78
Each
Units
Ultraviolet 720nm TO-8 No Through Hole 2 Si - - - - - 5.21mm -
RS Stock No. 124-7158
Mfr. Part No.S5971
kr 224,49
Each
Units
Infrared, Visible Light 900nm TO-18 No Through Hole 3 Si 320nm 1060nm - - - 3.6mm -
RS Stock No. 846-749
Mfr. Part No.AEPX65
BrandCentronic
kr 360,28
Each
Units
- - TO-46 No Through Hole 2 Si - - - 0.9mm 0.9mm 0.63mm -
RS Stock No. 846-705
Mfr. Part No.OSD15-E
BrandCentronic
kr 537,70
Each
Units
Visible Light 630nm TO-5 No Through Hole 3 Si 350nm 800nm - - - 12.7mm -
RS Stock No. 124-7164
Mfr. Part No.S3274-05
kr 162,96
Each
Units
Infrared 960nm DIP No Through Hole 4 - 760nm 1100nm - 4.1mm 5mm 1.8mm -
RS Stock No. 145-1980
Mfr. Part No.TEFD4300
BrandVishay
kr 3,017
Each (In a Bag of 1000)
Units
Infrared 950nm T-1 No Through Hole 2 Si 350nm 1120nm 100ns - - 4.5mm -
RS Stock No. 848-6269
Mfr. Part No.PIN-5DI
kr 270,48
Each
Units
Infrared, Visible Light 970nm TO-5 No Through Hole 3 Si 350nm 1100nm - - - 4.57mm -
RS Stock No. 177-5577
Mfr. Part No.PIN-5DI
kr 256,108
Each (In a Tray of 10)
Units
Infrared, Visible Light 970nm TO-5 No Through Hole 3 Si 350nm 1100nm - - - 4.57mm -
RS Stock No. 912-8520
Mfr. Part No.SFH 2430-Z
Brandams OSRAM
kr 8,138
Each (On a Reel of 1500)
Units
Infrared, Visible Light 570nm DIP No Surface Mount 2 Si 400nm 900nm - 4.5mm 4mm 1.2mm -
RS Stock No. 773-0418
Mfr. Part No.TEFD4300
BrandVishay
kr 6,653
Each (In a Bag of 10)
Units
Infrared 950nm T-1 No Through Hole 2 Si 350nm 1120nm - - - 4.5mm -
RS Stock No. 654-8249
Mfr. Part No.SFH 2430-Z
Brandams OSRAM
kr 19,698
Each (In a Pack of 5)
Units
Infrared, Visible Light 570nm DIP No Surface Mount 2 Si 400nm 900nm - 4.5mm 4mm 1.2mm -
RS Stock No. 497-5677
Mfr. Part No.BPX 65
Brandams OSRAM
kr 68,05
Each
Units
Infrared, Ultraviolet, Visible Light 850nm TO-18 No Through Hole 2 Si 350nm 1100nm - 5.6mm 5.6mm 5.5mm -
RS Stock No. 660-6601
Mfr. Part No.OPT101P-J
kr 215,15
Each
Units
Infrared, Ultraviolet 650nm PDIP, SOP Yes Surface Mount 8 - - - - 9.52mm 6.52mm 3.24mm -
RS Stock No. 177-5566
Mfr. Part No.PIN DL-4
kr 1 886,895
Each (In a Tray of 2)
Units
- 670nm TO-8 No Through Hole 3 Si - - 0.08µs - - 5.59mm -
RS Stock No. 851-3444
Mfr. Part No.PNA4U73F
BrandPanasonic
kr 0,847
Each (In a Pack of 25)
Units
Laser 780nm - Yes Through Hole - - - - 12ns 2.8mm 2.4mm 1.4mm -
RS Stock No. 121-9052
Mfr. Part No.OPT101P-J
kr 114,387
Each (In a Tube of 50)
Units
Infrared, Ultraviolet 650nm PDIP, SOP Yes Surface Mount 8 - - - - 9.52mm 6.52mm 3.24mm -
RS Stock No. 145-2618
Mfr. Part No.BPW20RF
BrandVishay
kr 41,981
Each (In a Bag of 500)
Units
Infrared, Visible Light 920nm TO-5 No Through Hole 2 Si 400nm 1100nm - 9.1mm 9.1mm 3.1mm -
RS Stock No. 124-7159
Mfr. Part No.S5972
kr 282,00
Each
Units
Infrared, Visible Light 800nm TO-18 No Through Hole 3 Si 320nm 1000nm - - - 3.6mm -
RS Stock No. 497-5661
Mfr. Part No.BPW 21
Brandams OSRAM
kr 134,04
Each
Units
Infrared, Ultraviolet, Visible Light 550nm TO-39 No Through Hole 2 Si 350nm 820nm - 9.5mm 9.5mm 3.7mm -