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. 168-5312
Mfr. Part No.SFH 206 K
$1.015
Each (On a Tape of 1000)
units
Infrared, Visible Light 850nm - Through Hole 2 Si 400nm 1100nm - 5.1mm 4.1mm 6.9mm 60 ° -
RS Stock No. 184-6978
Mfr. Part No.1541201EEA400
$0.494
Each (On a Reel of 3000)
units
Infrared 940nm 1206 Surface Mount 2 Si 700nm 1100nm - 3.2mm 1.6mm 1.1mm 140 ° -
RS Stock No. 177-5565
Mfr. Part No.FCI-INGAAS-120L-FC
$202.765
Each (In a Tray of 2)
units
- 1550nm - Through Hole 3 InGaAs 900nm 1700nm - - - 19.2mm - -
RS Stock No. 915-4850
Mfr. Part No.BP 104 FASR-Z
$1.024
Each (In a Pack of 20)
units
- 880nm - Surface Mount 2 Si - 880nm 0.02µs 4.5mm 4mm 1.2mm ±60 ° -
RS Stock No. 183-7183
Mfr. Part No.PIN-5D
$35.70
Each
units
Infrared 970nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS Stock No. 177-5574
Mfr. Part No.PIN-040A
$53.982
Each (In a Tray of 10)
units
Infrared 970nm TO-18 Through Hole 3 Si 350nm 1100nm - - - 5.08mm - -
RS Stock No. 455-7998
Mfr. Part No.HP307R2
BrandKodenshi
$1.23
Each (In a Pack of 5)
units
Infrared 940nm - Through Hole 2 Si 700nm 1050nm - 5.9mm 5.9mm 10mm 70 ° -
RS Stock No. 740-5055
Mfr. Part No.NJL6167R-1-TE1
$1.502
Each (In a Pack of 5)
units
- 800nm COBP Surface Mount 2 - - - - 3.6mm 1.8mm 1.16mm - -
RS Stock No. 912-8315
Mfr. Part No.BPW 34 FS-Z
$0.725
Each (On a Reel of 1500)
units
Infrared 950nm Smart DIL Surface Mount 2 Si 780nm 1100nm 0.02µs 4.5mm 3.7mm 1.2mm ±60 ° -
RS Stock No. 912-8558
Mfr. Part No.SFH 2500 FA-Z
$0.545
Each (On a Reel of 1000)
units
Infrared 900nm SMR Surface Mount 2 Si 750nm 1100nm - 7.7mm 6mm 6mm 15 ° -
RS Stock No. 183-7151
Mfr. Part No.PIN-SPOT2D
$38.70
Each
units
- 970nm TO-5 Through Hole 3 Si 350nm 1100nm - - - 0.11in - -
RS Stock No. 710-3822
Mfr. Part No.TEMD5020X01
BrandVishay
$0.96
Each (In a Pack of 5)
units
Infrared, Visible Light 900nm - Surface Mount 2 Si 430nm 1100nm - 5mm 4.24mm 1.12mm 65 ° -
RS Stock No. 710-5045
Mfr. Part No.TEMD5080X01
BrandVishay
$3.108
Each (In a Pack of 5)
units
Infrared, Ultraviolet, Visible Light 940nm - Surface Mount 4 Si 350nm 1100nm - 4.2mm 5mm 1.08mm 65 ° -
RS Stock No. 177-5573
Mfr. Part No.UV-035EQ
$137.056
Each (In a Tray of 5)
units
Ultraviolet 720nm TO-8 Through Hole 2 Si - - - - - 5.21mm - -
RS Stock No. 184-6981
Mfr. Part No.1540051EC3590
$0.549
Each (In a Bag of 500)
units
Infrared 940nm 5 Through Hole 2 Si 700nm 1100nm - 5mm 5mm 8.7mm 35 ° -
RS Stock No. 699-7613
Mfr. Part No.BPV23F
BrandVishay
$1.476
Each (In a Pack of 5)
units
Infrared 950nm Side Looker Through Hole 2 Si 870nm 1050nm - 4.5mm 5mm 6mm 60 ° -
RS Stock No. 710-3847
Mfr. Part No.TEMD6200FX01
BrandVishay
$1.43
Each (In a Pack of 10)
units
Visible Light 540nm 0805 Surface Mount 2 - 430nm 610nm - 2mm 1.25mm 0.85mm 60 ° -
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The BPW34 series, from Vishay Semiconductor, are silicon ...
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