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. 170-9647
Mfr. Part No.SFH 325-Z
€0.149
Each (On a Reel of 2000)
units
- 7µs 7µs 1 - 100nA ±60 ° Positive 2 Surface Mount PLCC 4.2 x 3.8 x 4.2mm 15mA -
RS Stock No. 184-7215
Mfr. Part No.1541411NEA210
€0.298
Each (In a Pack of 25)
units
Infrared - - 1 - 100 (Collector Emitter)nA 120 ° NPN 2 Surface Mount 3528 3.5 x 2.8 x 1.9mm 20mA -
RS Stock No. 710-3939
Mfr. Part No.VEMT3700F-GS08
BrandVishay
€0.121
Each (In a Pack of 10)
units
Infrared 6µs 6µs 1 5000µA 200nA 120 ° NPN 2 Surface Mount PLCC - 50mA -
RS Stock No. 168-5304
Mfr. Part No.BPY 62-3/4
€1.002
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 -
RS Stock No. 665-5445
Mfr. Part No.SFH 3600-Z
€0.648
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. 170-9648
Mfr. Part No.SFH 325-3-Z
€0.235
Each (On a Reel of 2000)
units
Infrared, Visible Light 7µs 7µs 1 50µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
New
RS Stock No. 215-1765
Mfr. Part No.1540052NA3090
€0.215
Each (On a Reel of 500)
units
Infrared - - 1 0.02µA - 30 ° - 2 Through Hole 5mm (T-1 3/4) - - -
RS Stock No. 665-5369
Mfr. Part No.SFH 309 FA-3/4
€0.356
Each (In a Pack of 10)
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. 168-5384
Mfr. Part No.SFH 3605-3/4-Z
€0.535
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. 170-9642
Mfr. Part No.SFH 3201-Z
€0.281
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. 195-271
Mfr. Part No.OP802WSL
BrandOptek
€2.30
Each
units
Infrared 7µs 7µs 1 3000µA 100nA - NPN 3 Through Hole TO-18 5.84 x 5.84 x 5.13mm 50mA -
RS Stock No. 665-5277
Mfr. Part No.BPX 86
€10.43
Each
units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 913-3281
Mfr. Part No.BPX 43-4/5
€1.822
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. 168-5314
Mfr. Part No.SFH 310 FA-2/3
€0.149
Each (On a Tape of 2000)
units
Infrared 12µs 12µs 1 4800µA 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 919-5598
Mfr. Part No.VEMT3700F-GS08
BrandVishay
€0.268
Each (On a Reel of 1500)
units
Infrared 6µs 6µs 1 5000µA 200nA 120 ° NPN 2 Surface Mount PLCC - 50mA -
New
RS Stock No. 215-1787
Mfr. Part No.1541201NBA300
€0.171
Each (On a Reel of 3000)
units
Infrared - - 1 0.02µA - 130 ° - 2 Through Hole 1206 - - -
RS Stock No. 170-9649
Mfr. Part No.SFH 325-4-Z
€0.235
Each (On a Reel of 2000)
units
Infrared, Visible Light 7µs 7µs 1 80µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
RS Stock No. 184-1084
Mfr. Part No.QSD124
€0.213
Each (In a Bag of 250)
units
Infrared 7µs 7µs 1 - 100nA ±12 ° - 2 Through Hole T-1 3/4 6.1 Dia. x 8.77mm 39mA 6.1mm
RS Stock No. 665-5401
Mfr. Part No.SFH 320 FA-4-Z
€0.356
Each (In a Pack of 10)
units
Infrared 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
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 -