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. 665-5404
Mfr. Part No.SFH 314 FA
€0.224
Each (In a Pack of 20)
units
Infrared 14µs 14µs 1 - 200nA 80 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 6.9mm 50mA -
New
RS Stock No. 215-1766
Mfr. Part No.1540052NA3090
€0.282
Each (In a Pack of 25)
units
Infrared - - 1 0.02µA - 30 ° - 2 Through Hole 5mm (T-1 3/4) - - -
RS Stock No. 145-2619
Mfr. Part No.BPW85B
BrandVishay
€0.186
Each (In a Bag of 1000)
units
Infrared, Visible Light 2.3µs 2µs 1 4000µA 200nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.5mm 50mA -
RS Stock No. 700-0760
Mfr. Part No.BPW85A
BrandVishay
€0.455
Each (In a Pack of 10)
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. 912-8567
Mfr. Part No.SFH 309-4/5
€0.139
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole T-1 4 x 4 x 5.2mm 15mA -
RS Stock No. 700-0782
Mfr. Part No.VEMT2020X01
BrandVishay
€0.464
Each (In a Pack of 20)
units
Infrared - - 1 9000µA 100nA 30 ° NPN 2 Surface Mount - 2.3 x 2.3 x 2.77mm 50mA -
RS Stock No. 177-4916
Mfr. Part No.PT480FE0000F
BrandSharp
€0.233
Each (In a Bag of 2000)
units
Infrared 3.5µs 3µs 1 3000µA 100nA 26 ° NPN 2 Through Hole - 3 x 2.95 x 4mm 20mA -
RS Stock No. 170-2455
Mfr. Part No.PT4800E0000F
BrandSharp
€0.333
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. 184-6983
Mfr. Part No.1541411NBA210
€0.191
Each (On a Reel of 2000)
units
Infrared, Visible Light - - 1 - 100 (Collector Emitter)nA 120 ° NPN 2 Surface Mount 3528 3.5 x 2.8 x 1.9mm 20mA -
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. 539-836
Mfr. Part No.SFH 3710-2/3-Z
€0.39
Each (In a Pack of 10)
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. 168-5169
Mfr. Part No.SFH 3410-3/4-Z
€0.363
Each (On a Reel of 2000)
units
Infrared, Ultraviolet, Visible Light - - 1 25µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
RS Stock No. 700-0763
Mfr. Part No.TEMT7000X01
BrandVishay
€0.156
Each (In a Pack of 10)
units
Infrared, Visible Light - - 1 675µA 100nA 120 ° NPN 2 Surface Mount - 2 x 1.25 x 0.85mm 20mA -
RS Stock No. 708-2822
Mfr. Part No.BPW96C
BrandVishay
€0.653
Each (In a Bag of 10)
units
Infrared, Visible Light 2.3µs 2µs 1 15000µA 200nA 40 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.75 x 5.75 x 8.6mm 50mA -
RS Stock No. 169-7604
Mfr. Part No.SDP 8406-002
BrandHoneywell
€0.82
Each (In a Bag of 100)
units
- 15µs 15µs 1 3600µA 100nA 50 ° NPN 2 Through Hole Side Looker 4.45 x 2.28 x 5.72mm 36mA -
RS Stock No. 815-1257
Mfr. Part No.BPW76B
BrandVishay
€2.978
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. 184-7309
Mfr. Part No.1540601NBA500
€0.293
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. 184-6987
Mfr. Part No.1541201NEA400
€0.169
Each (On a Reel of 3000)
units
Infrared - - 1 - 100 (Collector Emitter)nA 140 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.1mm 20mA -
RS Stock No. 170-9645
Mfr. Part No.SFH 325 FA-4-Z
€0.473
Each (On a Reel of 2000)
units
Infrared 7µs 7µs 1 80µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
RS Stock No. 168-5382
Mfr. Part No.SFH 320-3-Z
€0.341
Each (On a Reel of 2000)
units
Infrared, Visible Light 7µs 7µs 1 650µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -