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 261 - 274 of 274 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. 170-9650
Mfr. Part No.SFH 3400-Z
kr 3,371
Each (On a Reel of 2000)
Units
Infrared, Visible Light 24µs 24µs 1 - 100nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 50mA -
RS Stock No. 455-7954
Mfr. Part No.OPL550
BrandOptek
kr 13,50
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. 184-6985
Mfr. Part No.1541201NC3060
kr 1,908
Each (On a Reel of 2000)
Units
Infrared - - 1 - 100 (Collector Emitter)nA 30 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.85mm 20mA -
RS Stock No. 665-5356
Mfr. Part No.SFH 309
kr 3,589
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. 168-5368
Mfr. Part No.BPX 88
kr 74,793
Each (In a Bag of 100)
Units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 165-4935
Mfr. Part No.BPW96B
BrandVishay
kr 2,833
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. 169-7607
Mfr. Part No.SD5410-002
BrandHoneywell
kr 101,814
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. 654-8873
Mfr. Part No.SFH 320-3/4-Z
kr 2,343
Each (In a Pack of 10)
Units
Infrared, Visible Light 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 170-9649
Mfr. Part No.SFH 325-4-Z
kr 2,344
Each (On a Reel of 2000)
Units
Infrared, Visible Light 7µs 7µs 1 80µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
RS Stock No. 136-9672
Mfr. Part No.BPX 81-3/4
kr 10,947
Each (In a Pack of 10)
Units
- 6µs 6µs 1 >400µA 1 (≤ 50)nA ±18 ° NPN 2 Through Hole Miniature Array 2.2 x 2 x 3.45mm 50mA -
RS Stock No. 136-9671
Mfr. Part No.BPX 81-3/4
kr 4,729
Each (In a Bag of 1000)
Units
- 6µs 6µs 1 >400µA 1 (≤ 50)nA ±18 ° NPN 2 Through Hole Miniature Array 2.2 x 2 x 3.45mm 50mA -
RS Stock No. 146-1625
Mfr. Part No.SFH 310
kr 1,222
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. 184-1403
Mfr. Part No.QRD1114
kr 8,245
Each (In a Pack of 10)
Units
Infrared 50µs 10µs 1 - 100nA - - 4 Through Hole Custom 4L 4.39 x 6.1 x 4.65mm 1 (Minimum)mA -
RS Stock No. 184-7215
Mfr. Part No.1541411NEA210
kr 2,967
Each (In a Pack of 25)
Units
Infrared - - 1 - 100 (Collector Emitter)nA 120 ° NPN 2 Surface Mount 3528 3.5 x 2.8 x 1.9mm 20mA -
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