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. 168-5362
Mfr. Part No.BPX 38-3
€2.192
Each (In a Bag of 1000)
units
Infrared, Visible Light 18µs 18µs 1 1500µA 100nA 80 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 5.5mm 50mA -
RS Stock No. 168-5291
Mfr. Part No.SFH 300-3/4
€0.215
Each (On a Tape of 1000)
units
Infrared, Visible Light 10µs 10µs 1 7700µA 50nA 50 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 168-5363
Mfr. Part No.BPX 43-5
€2.064
Each (In a Bag of 1000)
units
Infrared, Visible Light 18µs 18µs 1 15000µA 100nA 30 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 50mA -
RS Stock No. 168-5374
Mfr. Part No.SFH 309 FA-5/6
€0.135
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 11200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 168-5318
Mfr. Part No.SFH 320 FA-3/4-Z
€0.157
Each (On a Reel of 2000)
units
Infrared 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 170-2390
Mfr. Part No.PT480FE0000F
BrandSharp
€0.233
Each (In a Bag of 1000)
units
- 3.5µs 3µs 1 3000µA 100nA 26 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 4mm 20mA -
RS Stock No. 124-6802
Mfr. Part No.RPT-34PB3F
BrandROHM
€0.421
Each (In a Pack of 25)
units
Infrared 10µs 10µs 1 2000µA 0.5µA ±36 ° NPN 2 Through Hole T-1 3.8 (Dia.) x 5.2mm 30mA 3.8mm
RS Stock No. 802-3317
Mfr. Part No.QSE113
€0.431
Each (In a Pack of 20)
units
Infrared 8µs 8µs 1 - 100nA 25 ° - 2 Through Hole Side Looker 4.44 x 2.54 x 5.08mm 1.50mA -
RS Stock No. 168-5375
Mfr. Part No.SFH 309 FA-3/4
€0.146
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 4500µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 665-5287
Mfr. Part No.BPY 62
€2.264
Each (In a Pack of 5)
units
Infrared, Visible Light 12µs 12µs 1 500µA 50nA 16 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 100mA -
RS Stock No. 876-8694
Mfr. Part No.BPX 38-4
€3.71
Each (In a Pack of 5)
units
Infrared 15µs 15µs 1 2300µA 20 (≤ 100)nA ±40 ° NPN 3 Through Hole TO-18 4.8 (Dia.) x 5.5mm 50mA 4.8mm
RS Stock No. 171-4895
Mfr. Part No.SD1410-003L
BrandHoneywell
€11.94
Each
units
- 75µs 75µs 1 4000µA 250nA 24 ° NPN 2 Through Hole Metal Can 2.41 x 2.41 x 3.1mm - -
RS Stock No. 168-5384
Mfr. Part No.SFH 3605-3/4-Z
€0.209
Each (On a Reel of 2000)
units
Infrared, Visible Light 45µs 45µs 1 500µA 50nA 40 ° - 2 Surface Mount - 3.3 x 2.35 x 1.7mm 15mA -
RS Stock No. 146-1625
Mfr. Part No.SFH 310
€0.131
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. 876-8704
Mfr. Part No.BPX 43-4
€2.922
Each (In a Pack of 5)
units
Infrared 15µs 15µs 1 9500µA 20 (≤ 100)nA ±15 ° NPN 3 Through Hole TO-18 4.8 (Dia.) x 6.2mm 50mA 4.8mm
RS Stock No. 168-5320
Mfr. Part No.SFH 3400-2/3-Z
€0.353
Each (On a Reel of 2000)
units
Infrared, Visible Light 24µs 24µs 1 2600µA 100nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 50mA -
RS Stock No. 146-1607
Mfr. Part No.SFH 3710-2/3-Z
€0.235
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. 666-6621
Mfr. Part No.PT100MC0MP
BrandSharp
€0.164
Each (In a Pack of 10)
units
Infrared 6µs 5µs - - 100nA 15 ° NPN 2 Surface Mount - 3 x 1.4 x 2.2mm 20mA -
RS Stock No. 315-876
Mfr. Part No.PT481E00000F
BrandSharp
€1.00
Each
units
- 70000ns 80µs 1 25000µA 1000nA 26 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 4mm 50mA -
RS Stock No. 168-5304
Mfr. Part No.BPY 62-3/4
€1.037
Each (On a Tape 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 -
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