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 146 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. 654-8918
Mfr. Part No.SFH 3710-3/4-Z
R 8.672
Each (In a Pack of 5)
units
Infrared, Ultraviolet, Visible Light - - 1 570µA 3nA 120 ° NPN 2 Surface Mount - 2.1 x 1.35 x 0.9mm 20mA -
RS stock no. 912-8576
Mfr. Part No.SFH 3710-3/4-Z
R 4.954
Each (On a Reel of 3000)
units
Infrared, Ultraviolet, Visible Light - - 1 570µA 3nA 120 ° NPN 2 Surface Mount SMD 2.1 x 1.35 x 0.9mm 20mA -
RS stock no. 915-4866
Mfr. Part No.SFH 3201-2/3-Z
R 6.223
Each (In a Pack of 20)
units
Infrared, Visible Light 24µs 24µs 1 4200µA 200nA 120 ° NPN 6 Surface Mount SMD 4.2 x 3.4 x 2.1mm 50mA -
RS stock no. 170-9643
Mfr. Part No.SFH 3201-2/3-Z
R 6.294
Each (On a Reel of 1000)
units
Infrared, Visible Light 24µs 24µs 1 4200µA 200nA 120 ° NPN 6 Surface Mount SMD 4.2 x 3.4 x 2.1mm 50mA -
RS stock no. 539-836
Mfr. Part No.SFH 3710-2/3-Z
R 7.296
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light - - 1 350µA 3nA 120 ° NPN 2 Surface Mount - 2.1 x 1.35 x 0.9mm 20mA -
RS stock no. 146-1607
Mfr. Part No.SFH 3710-2/3-Z
R 5.272
Each (On a Reel of 3000)
units
Infrared, Ultraviolet, Visible Light - - 1 350µA 3nA 120 ° NPN 2 Surface Mount - 2.1 x 1.35 x 0.9mm 20mA -
RS stock no. 665-5347
Mfr. Part No.SFH 300
R 7.334
Each (In a Pack of 20)
units
Infrared, Visible Light 10µs 10µs 1 - 50nA 50 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS stock no. 665-5356
Mfr. Part No.SFH 309
R 7.022
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. 146-1625
Mfr. Part No.SFH 310
R 2.419
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. 168-5370
Mfr. Part No.BPY 62-4
R 21.728
Each (In a Bag of 1000)
units
Infrared, Visible Light 12µs 12µs 1 5800µA 50nA 16 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 100mA -
RS stock no. 665-5384
Mfr. Part No.SFH 310
R 6.995
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. 665-5299
Mfr. Part No.BPY 62-4
R 57.628
Each (In a Pack of 5)
units
Infrared, Visible Light 12µs 12µs 1 5800µA 50nA 16 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 100mA -
RS stock no. 146-1622
Mfr. Part No.SFH 300
R 3.141
Each (In a Bag of 1000)
units
Infrared, Visible Light 10µs 10µs 1 - 50nA 50 ° 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
R 2.501
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. 912-8514
Mfr. Part No.SFH 309 FA-4/5
R 2.559
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. 168-5376
Mfr. Part No.SFH 309-5
R 3.204
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. 665-5372
Mfr. Part No.SFH 309-5
R 8.776
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. 654-8019
Mfr. Part No.SFH 309 FA-4/5
R 7.211
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. 654-7993
Mfr. Part No.LPT 80A
R 11.603
Each (In a Pack of 10)
units
Infrared, Visible Light 10µs 10µs 1 3200µA 3nA 70 ° NPN 2 Through Hole Side Looker 4.57 x 2.54 x 5.84mm 50mA -
RS stock no. 654-7808
Mfr. Part No.SFH 3310
R 17.724
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 -