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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Viewing 1 - 20 of 278 products
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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. 912-8514
Mfr. Part No.SFH 309 FA-4/5
$0.242
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole T-1 4 x 4 x 5.2mm 15mA -
RS Stock No. 665-5381
Mfr. Part No.SFH 309-5/6
$0.495
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. 654-8019
Mfr. Part No.SFH 309 FA-4/5
$0.394
Each (In a Pack of 10)
units
Infrared 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
$0.305
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. 169-2875
Mfr. Part No.IRA-E700ST0
BrandMurata
$3.825
Each (In a Box of 100)
units
Infrared - - - - - 22.5 ° - 3 Through Hole - 9.2 x 9.2 x 4.7mm - -
RS Stock No. 171-4902
Mfr. Part No.SD5410-002
BrandHoneywell
$7.39
Each
units
Infrared 75µs 75µs 1 4000µA 250nA 12 ° NPN 3 Through Hole TO-46 5.56 x 5.56 x 3.89mm - -
RS Stock No. 169-7607
Mfr. Part No.SD5410-002
BrandHoneywell
$6.546
Each (In a Bag of 100)
units
Infrared 75µs 75µs 1 4000µA 250nA 12 ° NPN 3 Through Hole TO-46 5.56 x 5.56 x 3.89mm - -
RS Stock No. 201-7729
Mfr. Part No.IRA-E700ST0
BrandMurata
$7.59
Each
units
Infrared - - - - - 22.5 ° - 3 Through Hole - 9.2 x 9.2 x 4.7mm - -
RS Stock No. 912-8504
Mfr. Part No.SFH 3310
$0.507
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light - - 1 8µA 3nA 150 ° NPN 2 Through Hole T-1 4 x 4 x 3.1mm 20mA -
RS Stock No. 654-7808
Mfr. Part No.SFH 3310
$0.982
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. 912-8567
Mfr. Part No.SFH 309-4/5
$0.22
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. 665-5384
Mfr. Part No.SFH 310
$0.49
Each (In a Pack of 20)
units
Infrared, Visible Light 12µs 12µs 1 - 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 165-4935
Mfr. Part No.BPW96B
BrandVishay
$0.473
Each (In a Bag of 1000)
units
Infrared 2.3µs 2µs - 7500µA 200nA ±20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5 (Dia.) x 8.6mm 50mA 5mm
RS Stock No. 146-1625
Mfr. Part No.SFH 310
$0.228
Each (In a Bag of 2000)
units
Infrared, Visible Light 12µs 12µs 1 - 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 145-1922
Mfr. Part No.BPW85A
BrandVishay
$0.304
Each (In a Bag of 1000)
units
Infrared, Visible Light 2.3µs 2µs 1 - 200nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.5mm 50mA -
RS Stock No. 902-6654
Mfr. Part No.BPW96B
BrandVishay
$0.789
Each (In a Pack of 25)
units
Infrared 2.3µs 2µs - 7500µA 200nA ±20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5 (Dia.) x 8.6mm 50mA 5mm
RS Stock No. 654-8801
Mfr. Part No.SFH 309-4/5
$0.515
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. 700-0760
Mfr. Part No.BPW85A
BrandVishay
$0.769
Each (In a Pack of 10)
units
Infrared, Visible Light 2.3µs 2µs 1 - 200nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.5mm 50mA -
RS Stock No. 170-0779
Mfr. Part No.OPL550
BrandOptek
$3.531
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. 455-7954
Mfr. Part No.OPL550
BrandOptek
$2.274
Each (In a Pack of 5)
units
Infrared 25ns 25ns 1 - - - - 3 Through Hole Side Looker 4.45 x 2.34 x 5.72mm - -
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