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. 165-3018
Mfr. Part No.VBPW34FASR
BrandVishay
TWD13.70
Each (On a Reel of 1000)
units
Infrared 950nm Reverse Gullwing Surface Mount 2 Si 780nm 1050nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 699-7616
Mfr. Part No.BPW34
BrandVishay
TWD41.00
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. 165-2428
Mfr. Part No.BPW34
BrandVishay
TWD14.30
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. 768-9401
Mfr. Part No.VBPW34FASR
BrandVishay
TWD40.20
Each (In a Bag of 5)
units
Infrared 950nm Reverse Gullwing Surface Mount 2 Si 780nm 1050nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 165-6174
Mfr. Part No.BPW46
BrandVishay
TWD13.80
Each (In a Bag of 1000)
units
- - - Through Hole - - - - - 5mm 3mm 6.4mm - -
RS Stock No. 815-1244
Mfr. Part No.BPW46
BrandVishay
TWD29.30
Each (In a Pack of 20)
units
- - - Through Hole - - - - - 5mm 3mm 6.4mm - -
RS Stock No. 708-2804
Mfr. Part No.BPW20RF
BrandVishay
TWD212.00
Each
units
Infrared, Visible Light 920nm TO-5 Through Hole 2 Si 400nm 1100nm - 9.1mm 9.1mm 3.1mm 50 ° -
RS Stock No. 145-2618
Mfr. Part No.BPW20RF
BrandVishay
TWD137.20
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. 165-6969
Mfr. Part No.BPV23NF
BrandVishay
TWD11.40
Each (In a Bag of 1000)
units
Infrared 940nm - Through Hole 2 Si 790nm 1050nm - - - - ±60 ° -
RS Stock No. 773-3984
Mfr. Part No.BPV23NF
BrandVishay
TWD34.00
Each (In a Bag of 2)
units
Infrared 940nm - Through Hole 2 Si 790nm 1050nm - - - - ±60 ° -
RS Stock No. 165-2447
Mfr. Part No.BPV22NF
BrandVishay
TWD12.00
Each (In a Bag of 4000)
units
Infrared 940nm Side Looker Through Hole 2 Si 790nm 1050nm - 4.5mm 5mm 6mm 60 ° -
RS Stock No. 165-2707
Mfr. Part No.TEMD6200FX01
BrandVishay
TWD16.30
Each (On a Reel of 3000)
units
Visible Light 540nm 0805 Surface Mount 2 - 430nm 610nm - 2mm 1.25mm 0.85mm 60 ° -
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 ° -
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. 768-9405
Mfr. Part No.VBPW34S
BrandVishay
TWD37.60
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. 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. 768-9394
Mfr. Part No.VBP104S
BrandVishay
TWD35.20
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. 699-7604
Mfr. Part No.BPV22NF
BrandVishay
TWD36.20
Each (In a Pack of 5)
units
Infrared 940nm Side Looker Through Hole 2 Si 790nm 1050nm - 4.5mm 5mm 6mm 60 ° -
RS Stock No. 165-2705
Mfr. Part No.TEMD5010X01
BrandVishay
TWD18.80
Each (On a Reel of 1500)
units
Infrared, Visible Light 940nm - Surface Mount 4 Si 430nm 1100nm - 4.2mm 5mm 1.08mm 65 ° -