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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รายละเอียดสินค้า / Description ราคา / 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. 184-7261
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1541201EEA400
THB15.92
Each: (In a Pack of 25)
Units
Infrared 940nm 1206 Surface Mount 2 - Si 700nm 1100nm - 3.2mm 1.6mm 1.1mm -
RS Stock No. 184-6981
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1540051EC3590
THB12.07
Each (In a Bag of 500)
Units
Infrared 940nm 5 Through Hole 2 - Si 700nm 1100nm - 5mm 5mm 8.7mm -
RS Stock No. 184-6978
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1541201EEA400
THB10.294
Each (On a Reel of 3000)
Units
Infrared 940nm 1206 Surface Mount 2 - Si 700nm 1100nm - 3.2mm 1.6mm 1.1mm -
RS Stock No. 184-6980
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1540051EA3590
THB12.07
Each (In a Bag of 500)
Units
- 940nm 5 Through Hole 2 - Si 400nm 1100nm - 5mm 5mm 8.7mm -
RS Stock No. 184-7270
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1541141ECA570
THB15.92
Each: (In a Pack of 25)
Units
Infrared 940nm 1104 Surface Mount 2 - Si 700nm 1100nm - 3mm 1mm 2.02mm -
RS Stock No. 184-7283
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1540051EA3590
THB15.92
Each: (In a Pack of 25)
Units
- 940nm 5 Through Hole 2 - Si 400nm 1100nm - 5mm 5mm 8.7mm -
RS Stock No. 184-6979
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1541141ECA570
THB10.294
Each (On a Reel of 3000)
Units
Infrared 940nm 1104 Surface Mount 2 - Si 700nm 1100nm - 3mm 1mm 2.02mm -
RS Stock No. 184-7295
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1540051EC3590
THB15.92
Each: (In a Pack of 25)
Units
Infrared 940nm 5 Through Hole 2 - Si 700nm 1100nm - 5mm 5mm 8.7mm -