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. 184-7309
Mfr. Part No.1540601NBA500
€0.272
Each (In a Pack of 25)
units
Infrared, Visible Light - - 1 - 100 (Collector Emitter)nA 150 ° NPN 2 Surface Mount 0603 1.6 x 0.8 x 0.8mm 20mA -
RS Stock No. 170-9642
Mfr. Part No.SFH 3201-Z
€0.278
Each (On a Reel of 1000)
units
Infrared, Visible Light 24µs 24µs 1 - 200nA 120 ° NPN 6 Surface Mount SMD 4.2 x 3.4 x 2.1mm 50mA -
RS Stock No. 145-1922
Mfr. Part No.BPW85A
BrandVishay
€0.205
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. 912-8576
Mfr. Part No.SFH 3710-3/4-Z
€0.267
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. 168-5383
Mfr. Part No.SFH 325 FA-3-Z
€0.199
Each (On a Reel of 2000)
units
Infrared 7µs 7µs 1 50µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
RS Stock No. 665-5378
Mfr. Part No.SFH 309-4
€0.49
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 4500µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 805-0523
Mfr. Part No.QSB363ZR
€0.307
Each (In a Pack of 25)
units
Infrared 15µs 15µs 1 - 100nA 12 ° - 2 Surface Mount Subminiature 2.7 x 2.2 x 3mm 1.5mA -
RS Stock No. 708-2810
Mfr. Part No.BPW77NB
BrandVishay
€3.062
Each (In a Bag of 5)
units
Infrared, Visible Light 5µs 6µs 1 20000µA 100nA 20 ° NPN 3 Through Hole TO-18 5.5 x 5.5 x 6.15mm 50mA -
RS Stock No. 654-8255
Mfr. Part No.BP 103-3/4
€1.972
Each (In a Pack of 5)
units
Infrared, Visible Light 12µs 12µs 1 950µA 50nA 110 ° NPN 3 Through Hole TO-18 5.5 x 5.5 x 3.6mm 100mA -
RS Stock No. 665-5388
Mfr. Part No.SFH 310 FA
€0.393
Each (In a Pack of 20)
units
Infrared 12µs 12µs 1 - 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 654-8851
Mfr. Part No.SFH 314-2/3
€0.267
Each (In a Pack of 10)
units
Infrared, Visible Light 14µs 14µs 1 8600µA 200nA 80 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 6.9mm 50mA -
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. 710-3939
Mfr. Part No.VEMT3700F-GS08
BrandVishay
€0.532
Each (In a Pack of 10)
units
Infrared 6µs 6µs 1 5000µA 200nA 120 ° NPN 2 Surface Mount PLCC - 50mA -
RS Stock No. 919-0903
Mfr. Part No.TEMT1020
BrandVishay
€0.259
Each (On a Reel of 1000)
units
Infrared 2.3µs 2µs 1 7000µA 200nA 30 ° NPN 2 Surface Mount Subminiature 2.5 x 2 x 2.7mm 50mA -
RS Stock No. 665-5390
Mfr. Part No.SFH 313 FA-3/4
€0.463
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. 165-2383
Mfr. Part No.TEPT5600
BrandVishay
€0.216
Each (In a Bag of 4000)
units
Infrared, Visible Light - - 1 - 50nA 40 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.75 x 5.75 x 8mm 20mA -
RS Stock No. 710-4922
Mfr. Part No.TEMT1000
BrandVishay
€0.582
Each (In a Pack of 10)
units
Infrared 2.3µs 2µs 1 7000µA 200nA 30 ° NPN 2 Surface Mount Subminiature 2.5 x 2 x 2.7mm 50mA -
RS Stock No. 170-9651
Mfr. Part No.SFH 3710-Z
€0.321
Each (On a Reel of 3000)
units
Infrared, Ultraviolet, Visible Light - - 1 12.5µA 3nA 120 ° NPN 2 Surface Mount SMD 2.1 x 1.35 x 0.9mm 20mA -
RS Stock No. 168-5376
Mfr. Part No.SFH 309-5
€0.341
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. 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 - -
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