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. 161-2061
Mfr. Part No.VEMD6110X01
BrandVishay
$0.558
Each (On a Reel of 3000)
units
Infrared 950nm 1206 Surface Mount 3 Si 750nm - 100ns 4mm 2mm 1.05mm ±60 ° AEC-Q101
RS Stock No. 145-2618
Mfr. Part No.BPW20RF
BrandVishay
$7.332
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. 183-7186
Mfr. Part No.PIN-5DP
$35.70
Each
units
Infrared 970nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS Stock No. 848-6288
Mfr. Part No.PIN-10D
$178.17
Each
units
Infrared 970nm BNC Surface Mount 1 Si 350nm 1100nm - 24.77mm - 26.16mm - -
RS Stock No. 185-9635
Mfr. Part No.MICRORB-10035-MLP-TR1
$99.90
Each
units
- - MLP Surface Mount 4 Si 300nm 1050nm - 1.5mm 1.5mm 0.65mm - -
RS Stock No. 912-8318
Mfr. Part No.BPW 34 S-Z
$0.879
Each (On a Reel of 1500)
units
Infrared 850nm Smart DIL Surface Mount 2 Si 400nm 1100nm 0.02µs 4.5mm 3.7mm 1.2mm ±60 ° -
RS Stock No. 176-9786
Mfr. Part No.UV-100L
$237.00
Each
units
- 254nm Low Profile Through Hole 3 Si UV-100L 254nm - - - 4.826mm - -
RS Stock No. 183-7163
Mfr. Part No.OSD5-0
$29.80
Each
units
Infrared 900nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.13in - -
RS Stock No. 161-2166
Mfr. Part No.VEMD1160X01
BrandVishay
$1.21
Each (In a Pack of 25)
units
- 840nm 0805 Surface Mount 2 Si 700nm - 80ns 2mm 1.25mm 0.85mm ±70 ° AEC-Q101
RS Stock No. 848-6279
Mfr. Part No.PIN-SPOT-9DMI
$303.45
Each
units
- 970nm Low Profile Through Hole 3 Si 350nm 1100nm - - - 5mm - -
RS Stock No. 177-7613
Mfr. Part No.BP104
BrandVishay
$0.638
Each (In a Box of 3000)
units
Infrared 950nm - Through Hole 2 Si 870nm 1050nm - 4.65mm 4.3mm 2mm 65 ° -
RS Stock No. 168-5293
Mfr. Part No.SFH 229 FA
$0.598
Each (In a Bag of 2000)
units
Infrared 900nm - Through Hole 2 Si 730nm 1100nm 10ns 4mm 3mm 5.2mm ±17 ° -
RS Stock No. 183-7116
Mfr. Part No.FCI-InGaAs-300
$47.98
Each (In a Tray of 10)
units
Infrared 1700nm TO-46 Through Hole 3 InGaAs 900nm 1700nm 1.5ns - - 2.68mm - -
RS Stock No. 161-1862
Mfr. Part No.SFH 2200 FA
$0.70
Each (On a Reel of 1500)
units
- 940nm Top LED Surface Mount 2 Si - 940nm 0.04µs 5.09mm 4mm 0.85mm ±60 ° -
RS Stock No. 183-7136
Mfr. Part No.PIN-5DP/SB
$38.27
Each (In a Tray of 10)
units
Infrared 410nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS Stock No. 183-7181
Mfr. Part No.PIN-10DP
$172.00
Each
units
Infrared 970nm BNC Surface Mount 1 Si 350nm 1100nm - - - 1.03in - -
RS Stock No. 654-8053
Mfr. Part No.SFH 229 FA
$1.265
Each (In a Pack of 10)
units
Infrared 900nm T-1 Through Hole 2 Si 730nm 1100nm 10ns 4mm 3mm 5.2mm ±17 ° -
RS Stock No. 497-5251
Mfr. Part No.SFH 2400 FA-Z
$0.696
Each (In a Pack of 5)
units
Infrared 900nm DIP Surface Mount 3 Si 750nm 1100nm - 2.1mm 2.7mm 1.05mm 60 ° -
RS Stock No. 185-9604
Mfr. Part No.MICROFC-10020-SMT-TR1
$99.90
Each
units
- - SMT Surface Mount 4 Si 300nm 950nm - 1.5mm 1.8mm 0.65mm - -
RS Stock No. 178-6072
Mfr. Part No.OSD15-5T
$59.01
Each
units
- 900nm TO-5 Through Hole 5 Si 340nm 1100nm - 9.144mm 9.144mm 3.302mm - -
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