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 Spectral Range of Sensitivity Diode Material Minimum Wavelength Detected Maximum Wavelength Detected Typical Fall Time Length Width Height Dimensions
RS Stock No. 699-7616
Mfr. Part No.BPW34
BrandVishay
MYR4.46
Each (In a Pack of 5)
units
Infrared, Visible Light 900nm - Through Hole 2 - Si 430nm 1100nm - 4.5mm 4.3mm 2mm -
RS Stock No. 165-2428
Mfr. Part No.BPW34
BrandVishay
MYR1.60
Each (On a Reel of 3000)
units
Infrared, Visible Light 900nm - Through Hole 2 - Si 430nm 1100nm - 4.5mm 4.3mm 2mm -
RS Stock No. 846-777
Mfr. Part No.OSD5-5T
BrandCentronic
MYR58.80
Each
units
Infrared, Visible Light 900nm TO-5 Through Hole - - Si 430nm 900nm - - - - -
RS Stock No. 177-6006
Mfr. Part No.SFH 203 P
MYR2.115
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 - Si 400nm 1100nm - 5.9mm 5mm 5mm -
RS Stock No. 654-8671
Mfr. Part No.SFH 203 P
MYR3.582
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm T-1 3/4 Through Hole 2 - Si 400nm 1100nm - 5.9mm 5mm 5mm -
RS Stock No. 195-697
Mfr. Part No.SFH 203 FA
MYR3.10
Each
units
Infrared 900nm T-1 3/4 Through Hole 2 - Si 800nm 1100nm - 5.9mm 5.9mm 9mm -
RS Stock No. 773-3984
Mfr. Part No.BPV23NF
BrandVishay
MYR3.825
Each (In a Bag of 2)
units
Infrared 940nm - Through Hole 2 - Si 790nm 1050nm - - - - -
RS Stock No. 165-6969
Mfr. Part No.BPV23NF
BrandVishay
MYR2.018
Each (In a Bag of 1000)
units
Infrared 940nm - Through Hole 2 - Si 790nm 1050nm - - - - -
RS Stock No. 848-6285
Mfr. Part No.FCI-InGaAs-500
MYR248.96
Each
units
- 1550nm TO-46 Through Hole 3 - InGaAs 900nm 1700nm - - - 3.75mm -
RS Stock No. 708-2813
Mfr. Part No.BPW21R
BrandVishay
MYR44.67
Each
units
Visible Light 565nm TO-5 Through Hole 2 - Si 420nm 675nm - 9.1mm 9.1mm 3.1mm -
RS Stock No. 177-7627
Mfr. Part No.BPW21R
BrandVishay
MYR55.827
Each (In a Box of 500)
units
Visible Light 565nm TO-5 Through Hole 2 - Si 420nm 675nm - 9.1mm 9.1mm 3.1mm -
RS Stock No. 652-027
Mfr. Part No.QD7-5T
BrandCentronic
MYR151.15
Each
units
Infrared, Visible Light 340nm TO-5 Through Hole - - Si 430nm 900nm - - - - -
RS Stock No. 177-5578
Mfr. Part No.FCI-INGAAS-500
MYR399.51
Each (In a Tray of 10)
units
- 1550nm TO-46 Through Hole 3 - InGaAs 900nm 1700nm - - - 3.75mm -
RS Stock No. 699-7607
Mfr. Part No.BPV10NF
BrandVishay
MYR3.17
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 -
RS Stock No. 848-6275
Mfr. Part No.PIN DL-4
MYR581.68
Each
units
- 670nm TO-8 Through Hole 3 - Si - - - - - 5.59mm -
RS Stock No. 247-240
Mfr. Part No.BPW 34
MYR4.21
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm DIP Through Hole 2 - Si 400nm 1100nm - 4.5mm 4mm 2.2mm -
RS Stock No. 168-5163
Mfr. Part No.BPW 34
MYR1.792
Each (On a Reel of 1000)
units
Infrared, Visible Light 850nm DIP Through Hole 2 - Si 400nm 1100nm - 4.5mm 4mm 2.2mm -
RS Stock No. 177-5566
Mfr. Part No.PIN DL-4
MYR1,449.20
Each (In a Tray of 2)
units
- 670nm TO-8 Through Hole 3 - Si - - - - - 5.59mm -
RS Stock No. 165-2577
Mfr. Part No.BPV10NF
BrandVishay
MYR1.50
Each (In a Bag of 1000)
units
Infrared 940nm - Through Hole 2 - Si 790nm 1050nm - 5.75mm 5.75mm 8.6mm -
RS Stock No. 654-8154
Mfr. Part No.SFH 203
MYR2.102
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 -
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