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. 184-6978
Mfr. Part No.1541201EEA400
$0.514
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. 180-2609
Mfr. Part No.S13948-01SB
$3.696
Each (In a Pack of 5)
units
Visible Light 560nm - Through Hole 2 - 300nm 820nm 2.5ms - - 3.5mm - -
RS Stock No. 165-2633
Mfr. Part No.BPW41N
BrandVishay
$0.678
Each (In a Bag of 1000)
units
Infrared 950nm Side Looker Through Hole 2 Si 870nm 1050nm - 5mm 3mm 6.4mm 65 ° -
RS Stock No. 183-7149
Mfr. Part No.FCI-InGaAs-1500
$157.49
Each
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 1100nm 1620nm - - - 3.81mm - -
RS Stock No. 183-7151
Mfr. Part No.PIN-SPOT2D
$34.83
Each
units
- 970nm TO-5 Through Hole 3 Si 350nm 1100nm - - - 0.11in - -
RS Stock No. 185-9635
Mfr. Part No.MICRORB-10035-MLP-TR1
$94.61
Each
units
- - MLP Surface Mount 4 Si 300nm 1050nm - 1.5mm 1.5mm 0.65mm - -
RS Stock No. 161-1863
Mfr. Part No.SFH 2201
$0.779
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. 183-7122
Mfr. Part No.OSD60-0
$108.542
Each (In a Tray of 10)
units
Infrared 900nm TO-8 Through Hole 3 Si 350nm 1100nm - - - 0.17in - -
RS Stock No. 183-7191
Mfr. Part No.PIN-6D
$48.26
Each
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 184-6981
Mfr. Part No.1540051EC3590
$0.494
Each (In a Bag of 500)
units
Infrared 940nm 5 Through Hole 2 Si 700nm 1100nm - 5mm 5mm 8.7mm 35 ° -
RS Stock No. 183-7129
Mfr. Part No.PIN DL-10
$409.288
Each (In a Tray of 10)
units
- - - - - - - - - - - - - -
RS Stock No. 183-7132
Mfr. Part No.PIN-5D
$26.66
Each (In a Tray of 10)
units
Infrared 970nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS Stock No. 183-7118
Mfr. Part No.FCI-InGaAs-3000-20
$397.694
Each (In a Tray of 10)
units
Infrared 1550nm TO-46, TO-5 Through Hole 2 InGaAs 1100nm 1620nm - - - 4.7mm - -
RS Stock No. 183-7181
Mfr. Part No.PIN-10DP
$147.38
Each
units
Infrared 970nm BNC Surface Mount 1 Si 350nm 1100nm - - - 1.03in - -
RS Stock No. 161-1872
Mfr. Part No.SFH 2201
$2.32
Each (In a Pack of 5)
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
$32.782
Each (In a Tray of 10)
units
Infrared 410nm TO-5 Through Hole 2 Si 350nm 1100nm - - - 0.18in - -
RS Stock No. 168-5284
Mfr. Part No.BPW 34 BS-Z
$4.944
Each (On a Reel of 1500)
units
Infrared, Ultraviolet, Visible Light 850nm DIP Surface Mount 2 Si 350nm 1100nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 654-8148
Mfr. Part No.BP 104 S-Z
$1.002
Each (In a Pack of 5)
units
Infrared, Visible Light 850nm DIP Surface Mount 2 Si 400nm 1100nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 176-9787
Mfr. Part No.PIN-RD100
$195.54
Each
units
Visible Light 950nm Ceramic Through Hole 2 Si 350nm 1100nm - 16.51mm 14.986mm 2.032mm - -
RS Stock No. 124-9083
Mfr. Part No.SFH 2200
$1.35
Each (In a Pack of 20)
units
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