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 29,352
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 13,207
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. 913-3281
Mfr. Part No.BPX 43-4/5
kr 18,167
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. 665-5243
Mfr. Part No.BPX 43-4/5
kr 28,514
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. 665-5388
Mfr. Part No.SFH 310 FA
kr 3,589
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. 539-864
Mfr. Part No.SFH 3410-1/2-Z
kr 3,66
Each (In a Pack of 5)
Units
Infrared, Ultraviolet, Visible Light - - 1 10µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
RS Stock No. 146-1626
Mfr. Part No.SFH 310 FA
kr 1,222
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. 168-5379
Mfr. Part No.SFH 313 FA-3/4
kr 2,077
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. 168-5170
Mfr. Part No.SFH 3410-1/2-Z
kr 3,605
Each (On a Reel of 2000)
Units
Infrared, Ultraviolet, Visible Light - - 1 10µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
RS Stock No. 665-5390
Mfr. Part No.SFH 313 FA-3/4
kr 4,865
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. 908-7037
Mfr. Part No.OP805SL
BrandOptek
kr 20,608
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. 876-8694
Mfr. Part No.BPX 38-4
kr 44,206
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. 908-7034
Mfr. Part No.OP804SL
BrandOptek
kr 18,594
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. 168-5550
Mfr. Part No.BPX 38-4
kr 20,514
Each (In a Bag of 1000)
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
kr 1,452
Each (In a Pack of 10)
Units
Infrared 6µs 6µs 1 5000µA 200nA 120 ° NPN 2 Surface Mount PLCC - 50mA -
RS Stock No. 815-1263
Mfr. Part No.BPW85
BrandVishay
kr 6,197
Each (In a Pack of 25)
Units
Infrared, Visible Light 2.3µs 2µs 1 8000µA 200nA ±25 ° NPN 2 Through Hole 3mm (T-1) 3 x 4.5mm 50mA 3mm
RS Stock No. 654-7993
Mfr. Part No.LPT 80A
kr 5,952
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. 665-5445
Mfr. Part No.SFH 3600-Z
kr 3,569
Each (In a Pack of 10)
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. 700-0767
Mfr. Part No.TEMT7100X01
BrandVishay
kr 6,291
Each (In a Pack of 10)
Units
Infrared - - 1 675µA 100nA 120 ° NPN 2 Surface Mount - 2 x 1.25 x 0.85mm 20mA -
RS Stock No. 497-5302
Mfr. Part No.SFH 320 FA-Z
kr 4,706
Each (In a Pack of 5)
Units
Infrared 7µs 7µs 1 16µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
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