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. 708-2810
Mfr. Part No.BPW77NB
BrandVishay
kr 34,658
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. 145-1931
Mfr. Part No.BPW77NB
BrandVishay
kr 18,716
Each (In a Bag of 1000)
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. 665-5390
Mfr. Part No.SFH 313 FA-3/4
kr 5,464
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. 665-5243
Mfr. Part No.BPX 43-4/5
kr 32,528
Each (In a Pack of 5)
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. 913-3281
Mfr. Part No.BPX 43-4/5
kr 26,15
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. 665-5388
Mfr. Part No.SFH 310 FA
kr 4,305
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. 168-5379
Mfr. Part No.SFH 313 FA-3/4
kr 2,416
Each (In a Bag of 1000)
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. 146-1626
Mfr. Part No.SFH 310 FA
kr 1,633
Each (In a Bag of 2000)
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. 908-7034
Mfr. Part No.OP804SL
BrandOptek
kr 23,232
Each (In a Pack of 10)
Units
Infrared 7µs 7µs 1 - 100nA - NPN 3 Through Hole TO-18 5.84 (Dia.) x 6.86 Hmm 50mA 5.84mm
RS Stock No. 908-7037
Mfr. Part No.OP805SL
BrandOptek
kr 26,548
Each (In a Pack of 10)
Units
Infrared 7µs 7µs 1 - 100nA - NPN 3 Through Hole TO-18 5.84 (Dia.) x 6.86 Hmm 50mA 5.84mm
RS Stock No. 815-1257
Mfr. Part No.BPW76B
BrandVishay
kr 32,788
Each (In a Pack of 5)
Units
Infrared, Visible Light 5µs 6µs 1 600µA 100nA ±40 ° NPN 3 Through Hole TO-18 4.7 x 5.2mm 50mA 4.7mm
RS Stock No. 171-5419
Mfr. Part No.RPT-38PB3F
BrandROHM
kr 9,02
Each
Units
Visible Light - - 1 2 (Minimum)mA 0.5µA ±36 ° NPN 2 Through Hole DIP 3.4 (Dia.) x 5.2mm 30mA 3.4mm
RS Stock No. 654-8384
Mfr. Part No.BPY 62-3/4
kr 32,266
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. 184-7309
Mfr. Part No.1540601NBA500
kr 1,44
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. 168-5372
Mfr. Part No.SFH 300 FA
kr 2,177
Each (In a Bag of 1000)
Units
Infrared 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. 170-2455
Mfr. Part No.PT4800E0000F
BrandSharp
kr 3,315
Each (In a Bag of 1000)
Units
- 3.5µs 3µs 1 1000µA 100000nA 70 ° NPN 2 Through Hole Side Looker 3 x 1.5 x 3.5mm 20mA -
RS Stock No. 168-5291
Mfr. Part No.SFH 300-3/4
kr 2,535
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. 180-8099
Mfr. Part No.VEMT2023SLX01
BrandVishay
kr 6,795
Each (In a Pack of 20)
Units
- - - - - - - - - - - - - -
RS Stock No. 184-1423
Mfr. Part No.QSD123
Brandonsemi
kr 4,544
Each (In a Pack of 25)
Units
Infrared 7µs 7µs 1 - 100nA ±12 ° - 2 Through Hole T-1 3/4 6.1 Dia. x 8.77mm 16mA 6.1mm
RS Stock No. 455-8014
Mfr. Part No.ST23G, C
BrandKodenshi
kr 12,284
Each (In a Pack of 5)
Units
Infrared 4.8µs 3.2µs - 20000µA 100nA 30 ° NPN 2 Through Hole 5mm (T-1 3/4) 4.6 x 2.54 x 4.6mm 40mA -