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.

...
Read more Read less

Filters

Viewing 1 - 20 of 316 products
Results per page
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. 415-5722
Mfr. Part No.S1223-01
£7.02
Each
Units
Infrared, Ultraviolet, Visible Light 960nm TO-5 Through Hole 2 Si 320nm 1100nm - 9.1mm 9.1mm 4.1mm - -
RS Stock No. 654-8154
Mfr. Part No.SFH 203
£0.626
Each (In a Pack of 5)
Units
Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 Si 750nm 1100nm - 5.9mm 4.8mm 9mm 20 ° -
RS Stock No. 168-5299
Mfr. Part No.SFH 203
£0.186
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. 168-5245
Mfr. Part No.BPW 21
£6.247
Each (In a Box of 40)
Units
Infrared, Ultraviolet, Visible Light 550nm TO-39 Through Hole 2 Si 350nm 820nm - 9.5mm 9.5mm 3.7mm 55 ° -
RS Stock No. 497-5661
Mfr. Part No.BPW 21
£10.08
Each
Units
Infrared, Ultraviolet, Visible Light 550nm TO-39 Through Hole 2 Si 350nm 820nm - 9.5mm 9.5mm 3.7mm 55 ° -
RS Stock No. 195-697
Mfr. Part No.SFH 203 FA
£0.61
Each
Units
Infrared 900nm T-1 3/4 Through Hole 2 Si 800nm 1100nm - 5.9mm 5.9mm 9mm 20 ° -
RS Stock No. 913-3285
Mfr. Part No.SFH 2701
£0.199
Each (On a Reel of 3000)
Units
Infrared, Visible Light 820nm Chip LED Surface Mount 2 - 400nm 1050nm - 3.35mm 1.65mm 1.25mm 60 ° -
RS Stock No. 627-8366
Mfr. Part No.VTB8440BH
£3.89
Each
Units
Visible Light 580nm Ceramic Through Hole 2 Si 330nm 720nm - - - 7.87mm - -
RS Stock No. 912-8573
Mfr. Part No.SFH 213
£0.245
Each (In a Bag of 1000)
Units
Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.9mm 5mm 9mm 10 ° -
RS Stock No. 654-8902
Mfr. Part No.SFH 213
£0.812
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. 165-2428
Mfr. Part No.BPW34
BrandVishay
£0.304
Each (On a Reel of 3000)
Units
Infrared, Visible Light 900nm - Through Hole 2 Si 430nm 1100nm - 4.5mm 4.3mm 2mm 65 ° -
RS Stock No. 699-7616
Mfr. Part No.BPW34
BrandVishay
£0.844
Each (In a Pack of 5)
Units
Infrared, Visible Light 900nm - Through Hole 2 Si 430nm 1100nm - 4.5mm 4.3mm 2mm 65 ° -
RS Stock No. 912-8306
Mfr. Part No.BPX 65
£2.67
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. 497-5677
Mfr. Part No.BPX 65
£4.79
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. 848-6266
Mfr. Part No.FCI-InGaAs-120L-FC
£52.64
Each
Units
- 1550nm - Through Hole 3 InGaAs 900nm 1700nm - - - 19.2mm - -
RS Stock No. 177-5565
Mfr. Part No.FCI-INGAAS-120L-FC
£48.625
Each (In a Tray of 2)
Units
- 1550nm - Through Hole 3 InGaAs 900nm 1700nm - - - 19.2mm - -
RS Stock No. 708-2813
Mfr. Part No.BPW21R
BrandVishay
£9.31
Each
Units
Visible Light 565nm TO-5 Through Hole 2 Si 420nm 675nm - 9.1mm 9.1mm 3.1mm 50 ° -
RS Stock No. 177-7627
Mfr. Part No.BPW21R
BrandVishay
£5.044
Each (In a Box of 500)
Units
Visible Light 565nm TO-5 Through Hole 2 Si 420nm 675nm - 9.1mm 9.1mm 3.1mm 50 ° -
RS Stock No. 652-027
Mfr. Part No.QD7-5T
BrandCentronic
£29.50
Each
Units
Infrared, Visible Light 340nm TO-5 Through Hole - Si 430nm 900nm - - - - - -
RS Stock No. 699-7607
Mfr. Part No.BPV10NF
BrandVishay
£0.608
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 ° -
Related Products
The S9648-200SB photo IC diode from Hamamatsu has ...
Description:
The S9648-200SB photo IC diode from Hamamatsu has a plastic version of previous metal packages. The S9648-200SB has a spectral response which represents the sensitivity of the human eye.Suitable applications include; energy-saving sensors for TVs, dimmers for liquid crystal panels and light level measurement applications. Features and Benefits Human eye ...
The 5T series, from Centronic, are a family ...
Description:
The 5T series, from Centronic, are a family of silicon photodetectors. They have a high blue sensitivity with high resistance and low dark leakage current. They offer photovoltaic or reverse bias operation modes for a lower capacitance. The 5T photodetectors are ideal for applications with low light levels (430 to ...
The BPW20 and BPW21 series of silicon photodiodes, ...
Description:
The BPW20 and BPW21 series of silicon photodiodes, from Vishay Semiconductor, are in standard TO-5 packages. These packages have been hermtically sealed, making the BPW20 and BPW21 ideal for high precision linear applications. Suitable applications for the BPW20 and BPW21 photodiodes include; sensors for light measuring in cameras, photometers, colour ...
The BPW24R series, from Vishay Semiconductor, are a ...
Description:
The BPW24R series, from Vishay Semiconductor, are a family of silicon PIN photodiodes. They are in the standard TO-18 package with a hermetically sealed metal can with a glass lens. This makes the BPW24R suitable for high speed photo detector applications in harsh conditions. Features of the BPW24R PIN photodiode:TO-18 ...