Phototransistors

A Phototransistor is a two-lead or three-lead semiconductor that is more sensitive than a photodiode. It senses light levels and uses them to alter currents to create an electrical signal.
The bipolar semiconductor is can be made from silicon or another semi-conductive material.
How do Phototransistors work?
Once detection of light such as IR (infrared), visible light or UV (Ultraviolet) is successful, the device will alter a current flowing between an emitter and collector, depending on the light and level of intensity it receives.
Features and Benefits
• Reflow surface-mounting support
• Small, ultra-thin
• High sensitivity
• Electromagnetic noise resistance
• High linearity
• Produce a higher current than photodiodes
Where might I use a Phototransistor?
A photo transistor can be used in many different devices and applications such as:
• Photo interrupters
• Industrial electronics
• Human detection devices
• TV
• Air conditioning
• Digital photo-frames
• PCs or Laptops
• Automatic switches (lighting equipment)
• IP cameras
• Security devices
• Home electronics

...
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Description Price Spectrums Detected Typical Fall Time Typical Rise Time Number of Channels Maximum Light Current Maximum Dark Current Angle of Half Sensitivity Polarity Number of Pins Mounting Type Package Type Dimensions Collector Current Diameter
RS Stock No. 145-1923
Mfr. Part No.TEPT4400
BrandVishay
$0.456
Each (In a Bag of 1000)
units
Visible Light - - 1 200µA 50nA 60 ° - 2 Through Hole 3mm (T-1) 3.2 x 3.2 x 4.5mm 20mA -
RS Stock No. 700-0776
Mfr. Part No.TEPT4400
BrandVishay
$0.829
Each (In a Pack of 10)
units
Visible Light - - 1 200µA 50nA 60 ° - 2 Through Hole 3mm (T-1) 3.2 x 3.2 x 4.5mm 20mA -
RS Stock No. 455-7954
Mfr. Part No.OPL550
BrandOptek
$2.056
Each (In a Pack of 5)
units
Infrared 25ns 25ns 1 - - - - 3 Through Hole Side Looker 4.45 x 2.34 x 5.72mm - -
RS Stock No. 170-0779
Mfr. Part No.OPL550
BrandOptek
$2.51
Each (In a Bag of 50)
units
Infrared 25ns 25ns 1 - - - - 3 Through Hole Side Looker 4.45 x 2.34 x 5.72mm - -
RS Stock No. 654-8536
Mfr. Part No.SFH 313 FA-2/3
$0.94
Each (In a Pack of 10)
units
Infrared 14µs 14µs 1 12500µA 200nA 20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 146-1624
Mfr. Part No.SFH 309
$0.241
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 - 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 912-8545
Mfr. Part No.SFH 313 FA-2/3
$0.398
Each (In a Bag of 1000)
units
Infrared 14µs 14µs 1 12500µA 200nA 20 ° NPN 2 Through Hole T-1 3/4 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 665-5356
Mfr. Part No.SFH 309
$0.747
Each (In a Pack of 20)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 - 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 539-864
Mfr. Part No.SFH 3410-1/2-Z
$1.222
Each (In a Pack of 5)
units
Infrared, Ultraviolet, Visible Light - - 1 10µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
RS Stock No. 665-5372
Mfr. Part No.SFH 309-5
$2.222
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 168-5376
Mfr. Part No.SFH 309-5
$0.307
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 168-5378
Mfr. Part No.SFH 309-5/6
$0.271
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 11200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 654-8542
Mfr. Part No.SFH 310-2/3
$0.854
Each (In a Pack of 10)
units
Infrared, Visible Light 12µs 12µs 1 4800µA 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 168-5310
Mfr. Part No.SFH 310-2/3
$0.266
Each (On a Tape of 2000)
units
Infrared, Visible Light 12µs 12µs 1 4800µA 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 665-5381
Mfr. Part No.SFH 309-5/6
$0.849
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 11200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 168-5170
Mfr. Part No.SFH 3410-1/2-Z
$0.961
Each (On a Reel of 2000)
units
Infrared, Ultraviolet, Visible Light - - 1 10µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
RS Stock No. 912-8567
Mfr. Part No.SFH 309-4/5
$0.266
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole T-1 4 x 4 x 5.2mm 15mA -
RS Stock No. 654-8801
Mfr. Part No.SFH 309-4/5
$0.849
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 654-7808
Mfr. Part No.SFH 3310
$1.942
Each (In a Pack of 5)
units
Infrared, Ultraviolet, Visible Light - - 1 8µA 3nA 150 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 3.1mm 20mA -
RS Stock No. 577-544
Mfr. Part No.PT480E
BrandSharp
$1.44
Each
units
Infrared 3.5µs 3µs - - 1000nA 13 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 21.5mm 20mA -
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