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庫存編號 805-0508
製造零件編號QSB34CGR
HK$3.932
/個 (每包:10個)
單位
Infrared 940nm PLCC 2L Surface Mount 2 - Si 400nm 1100nm - 4.5mm 4mm 1.2mm -
全新
RS庫存編號 185-9634
製造零件編號MICRORB-10020-MLP-TR1
HK$482.44
單位
- - MLP Surface Mount 4 - Si 300nm 1050nm - 1.5mm 1.5mm 0.65mm -
全新
RS庫存編號 185-9604
製造零件編號MICROFC-10020-SMT-TR1
HK$482.44
單位
- - SMT Surface Mount 4 - Si 300nm 950nm - 1.5mm 1.8mm 0.65mm -
RS庫存編號 805-0539
製造零件編號QSD2030F
HK$1.826
/個 (每包:25個)
單位
- 880nm T-1 3/4 Through Hole 2 - Si 700nm 1100nm - - - 8.77mm -
全新
RS庫存編號 185-9635
製造零件編號MICRORB-10035-MLP-TR1
HK$482.44
單位
- - MLP Surface Mount 4 - Si 300nm 1050nm - 1.5mm 1.5mm 0.65mm -
全新
RS庫存編號 185-9603
製造零件編號MICROFC-10010-SMT-TR1
HK$482.44
單位
- - SMT Surface Mount 4 - Si 300nm 950nm - 1.5mm 1.8mm 0.65mm -
RS庫存編號 166-3058
製造零件編號QSB34CGR
HK$3.119
個 (在毎卷:1000)
單位
Infrared 940nm PLCC 2L Surface Mount 2 - Si 400nm 1100nm - 4.5mm 4mm 1.2mm -
全新
RS庫存編號 185-9605
製造零件編號MICROFC-10035-SMT-TR1
HK$482.44
單位
- - SMT Surface Mount 4 - Si 300nm 950nm - 1.5mm 1.8mm 0.65mm -
全新
RS庫存編號 185-9609
製造零件編號MICROFC-60035-SMT-TR1
HK$661.68
單位
- - SMT Surface Mount 4 - Si 300nm 950nm - 7mm 7mm 0.65mm -
全新
RS庫存編號 185-9607
製造零件編號MICROFC-30035-SMT-TR1
HK$454.07
單位
- - SMT Surface Mount 4 - Si 300nm 950nm - 4mm 4mm 0.65mm -
全新
RS庫存編號 185-9626
製造零件編號MICROFJ-60035-TSV-TR1
HK$827.04
單位
- - TSV Surface Mount 4 - Si 200nm 900nm - 6.13mm 6.13mm 0.46mm -
RS庫存編號 805-0505
製造零件編號QSB34GR
HK$3.722
/個 (每包:10個)
單位
Infrared 940nm PLCC 2L Surface Mount 2 - Si 730nm 1100nm - 4.5mm 4mm 1.2mm -
全新
RS庫存編號 185-9625
製造零件編號MICROFJ-40035-TSV-TR1
HK$689.20
單位
- - TSV Surface Mount 4 - Si 200nm 900nm - 4mm 4mm 0.46mm -
RS庫存編號 146-2108
製造零件編號QSD2030F
HK$1.407
個 (以毎袋:250)
單位
- 880nm - Through Hole 2 - Si 700nm 1100nm - - - 8.77mm -
全新
RS庫存編號 185-9624
製造零件編號MICROFJ-30035-TSV-TR1
HK$505.49
單位
- - SMT Surface Mount 4 - Si 200nm 900nm - 3.16mm 3.16mm 0.46mm -
全新
RS庫存編號 185-9622
製造零件編號MICROFJ-30020-TSV-TR1
HK$505.49
單位
- - SMT Surface Mount 4 - Si 200nm 900nm - 3.16mm 3.16mm 0.46mm -