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

...
Read more Read less

Filters

Viewing 1 - 20 of 142 products
Results per page
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. 912-8545
Mfr. Part No.SFH 313 FA-2/3
$0.42
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
$0.518
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. 146-1624
Mfr. Part No.SFH 309
$0.254
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. 654-8536
Mfr. Part No.SFH 313 FA-2/3
$0.977
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. 912-8567
Mfr. Part No.SFH 309-4/5
$0.307
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. 912-8551
Mfr. Part No.SFH 3100 F
$0.387
Each (In a Bag of 2000)
units
Infrared 9µs 7µs 1 400µA 50nA 28 ° NPN 2 Through Hole 3 mm 3.1 x 2.2 x 4.1mm 50mA -
RS Stock No. 654-8738
Mfr. Part No.SFH 3100 F
$0.96
Each (In a Pack of 10)
units
Infrared 9µs 7µs 1 400µA 50nA 28 ° NPN 2 Through Hole Side Looker 3.1 x 2.2 x 4.1mm 50mA -
RS Stock No. 168-5378
Mfr. Part No.SFH 309-5/6
$0.30
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. 665-5372
Mfr. Part No.SFH 309-5
$0.46
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. 654-8801
Mfr. Part No.SFH 309-4/5
$0.799
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. 168-5170
Mfr. Part No.SFH 3410-1/2-Z
$0.97
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. 654-8542
Mfr. Part No.SFH 310-2/3
$0.421
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. 168-5376
Mfr. Part No.SFH 309-5
$0.837
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. 539-864
Mfr. Part No.SFH 3410-1/2-Z
$0.84
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. 665-5381
Mfr. Part No.SFH 309-5/6
$0.824
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. 168-5310
Mfr. Part No.SFH 310-2/3
$0.307
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. 665-5397
Mfr. Part No.SFH 313 FA
$0.856
Each (In a Pack of 20)
units
Infrared 14µs 14µs 1 - 200nA 20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 654-7808
Mfr. Part No.SFH 3310
$1.832
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. 913-3294
Mfr. Part No.SFH 313 FA
$0.428
Each (In a Bag of 1000)
units
Infrared 14µs 14µs 1 - 200nA 20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 912-8504
Mfr. Part No.SFH 3310
$0.609
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 -