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. 773-0418
Mfr. Part No.TEFD4300
BrandVishay
R 7.441
Each (In a Bag of 10)
units
Infrared 950nm T-1 Through Hole 2 - Si 350nm 1120nm - - - 4.5mm -
RS stock no. 145-1980
Mfr. Part No.TEFD4300
BrandVishay
R 3.56
Each (In a Bag of 1000)
units
Infrared 950nm - Through Hole 2 - Si 350nm 1120nm - - - 4.5mm -
RS stock no. 773-0427
Mfr. Part No.TEFD4300F
BrandVishay
R 2.977
Each (In a Bag of 10)
units
Infrared 950nm T-1 Through Hole 2 - Si 770nm 1070nm - - - 4.5mm -
RS stock no. 708-2816
Mfr. Part No.BPW24R
BrandVishay
R 64.93
Each
units
Infrared, Visible Light 900nm TO-18 Through Hole 2 - Si 600nm 1050nm - 5.5mm 5.5mm 6.15mm -
RS stock no. 699-7616
Mfr. Part No.BPW34
BrandVishay
R 15.982
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. 146-1423
Mfr. Part No.BPW24R
BrandVishay
R 38.336
Each (In a Bag of 1000)
units
Infrared, Visible Light 900nm TO-18 Through Hole 2 - Si 600nm 1050nm - 5.5mm 5.5mm 6.15mm -
RS stock no. 818-4415
Mfr. Part No.VEMD10940F
BrandVishay
R 2.789
Each (In a Pack of 100)
units
Infrared 920nm - Surface Mount 2 - Si 830nm 950nm - 3mm 2mm 1mm -
RS stock no. 165-6113
Mfr. Part No.VEMD10940F
BrandVishay
R 1.489
Each (On a Reel of 3000)
units
Infrared 920nm - Surface Mount 2 - Si 830nm 950nm - 3mm 2mm 1mm -
RS stock no. 165-2632
Mfr. Part No.BPV22F
BrandVishay
R 5.634
Each (In a Bag of 1000)
units
Infrared 950nm - Through Hole 2 - Si 870nm 1050nm - 4.5mm 5mm 6mm -
RS stock no. 165-2428
Mfr. Part No.BPW34
BrandVishay
R 6.191
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. 699-7600
Mfr. Part No.BPV22F
BrandVishay
R 12.494
Each (In a Pack of 5)
units
Infrared 950nm - Through Hole 2 - Si 870nm 1050nm - 4.5mm 5mm 6mm -
RS stock no. 815-1254
Mfr. Part No.BPW83
BrandVishay
R 5.319
Each (In a Pack of 20)
units
Infrared, Visible Light 950nm - Through Hole 2 - Si 790nm 1050nm 100ns 5mm 3mm 6.4mm -
RS stock no. 145-2723
Mfr. Part No.BPW83
BrandVishay
R 5.194
Each (In a Bag of 1000)
units
Infrared, Visible Light 950nm - Through Hole 2 - Si 790nm 1050nm 100ns 5mm 3mm 6.4mm -
RS stock no. 165-2577
Mfr. Part No.BPV10NF
BrandVishay
R 5.231
Each (In a Bag of 1000)
units
Infrared 940nm - Through Hole 2 - Si 790nm 1050nm - 5.75mm 5.75mm 8.6mm -
RS stock no. 699-7607
Mfr. Part No.BPV10NF
BrandVishay
R 11.174
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. 699-7701
Mfr. Part No.VEMD2020X01
BrandVishay
R 2.394
Each (In a Pack of 20)
units
Infrared 940nm Subminiature Surface Mount 2 - Si 750nm 1050nm - 2.3mm 2.3mm 2.77mm -
RS stock no. 918-9483
Mfr. Part No.VEMD2020X01
BrandVishay
R 2.291
Each (On a Reel of 6000)
units
Infrared 940nm Subminiature Surface Mount 2 - Si 750nm 1050nm - 2.3mm 2.3mm 2.77mm -
RS stock no. 165-2447
Mfr. Part No.BPV22NF
BrandVishay
R 5.82
Each (In a Bag of 4000)
units
Infrared 940nm Side Looker Through Hole 2 - Si 790nm 1050nm - 4.5mm 5mm 6mm -
RS stock no. 699-7604
Mfr. Part No.BPV22NF
BrandVishay
R 14.958
Each (In a Pack of 5)
units
Infrared 940nm Side Looker Through Hole 2 - Si 790nm 1050nm - 4.5mm 5mm 6mm -
RS stock no. 165-6173
Mfr. Part No.BPV10
BrandVishay
R 4.365
Each (In a Bag of 1000)
units
- - T-1 3/4 Through Hole - - - - - - 8.6mm 5mm - -