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. 195-849
Mfr. Part No.SDP8436-003
BrandHoneywell
$2.81
Each
units
- 15µs 15µs 1 17500µA 100nA 18 ° NPN 2 Through Hole Side Looker 4.57 x 4.29 x 3.3mm - -
RS Stock No. 159-6563
Mfr. Part No.BPW85
BrandVishay
$1.22
Each (In a Bag of 1000)
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. 654-9090
Mfr. Part No.BPX 82
$7.88
Each
units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 778-1377
Mfr. Part No.SFH 3711
$0.893
Each (In a Pack of 10)
units
Infrared - - - 80µA 3nA ±60 ° NPN 2 Surface Mount - 2.1 x 0.95 x 1.35mm 20mA -
RS Stock No. 700-0776
Mfr. Part No.TEPT4400
BrandVishay
$0.754
Each (In a Pack of 10)
units
Visible Light - - 1 200µA 50nA 60 ° - 2 Through Hole 3mm (T-1) 3.2 x 3.2 x 4.5mm 20mA -
RS Stock No. 654-8536
Mfr. Part No.SFH 313 FA-2/3
$0.855
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. 165-6188
Mfr. Part No.BPW77NA
BrandVishay
$5.46
Each (In a Bag of 1000)
units
Infrared, Visible Light 5µs 6µs 1 15000µA 100nA ±10 ° NPN 3 Through Hole TO-18 4.69 x 6.15mm 50mA 4.69mm
RS Stock No. 168-5374
Mfr. Part No.SFH 309 FA-5/6
$0.287
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 11200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 919-0903
Mfr. Part No.TEMT1020
BrandVishay
$0.443
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. 168-5361
Mfr. Part No.BP 103
$1.88
Each (In a Bag of 1000)
units
Infrared, Visible Light 12µs 12µs 1 80µA 50nA 110 ° NPN 3 Through Hole TO-18 5.5 x 5.5 x 3.6mm 100mA -
RS Stock No. 168-5304
Mfr. Part No.BPY 62-3/4
$1.96
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. 710-3939
Mfr. Part No.VEMT3700F-GS08
BrandVishay
$1.24
Each (In a Pack of 10)
units
Infrared 6µs 6µs 1 5000µA 200nA 120 ° NPN 2 Surface Mount PLCC - 50mA -
RS Stock No. 708-2731
Mfr. Part No.TEFT4300
BrandVishay
$0.515
Each (In a Bag of 20)
units
Infrared 2.3µs 2µs 1 3200µA 200nA 60 ° NPN 2 Through Hole T-1 3.2 x 3.9 x 4.5mm 50mA -
RS Stock No. 168-5364
Mfr. Part No.BPX 84
$8.42
Each (In a Bag of 150)
units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 177-5961
Mfr. Part No.PT480E
BrandSharp
$0.437
Each (On a Reel of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 577-544
Mfr. Part No.PT480E
BrandSharp
$0.54
Each
units
Infrared 3.5µs 3µs - - 1000nA 13 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 21.5mm 20mA -
RS Stock No. 665-5366
Mfr. Part No.SFH 309 FA-5/6
$0.649
Each (In a Pack of 10)
units
Infrared 7µs 7µs 1 11200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 665-5445
Mfr. Part No.SFH 3600-Z
$0.662
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. 654-8384
Mfr. Part No.BPY 62-3/4
$5.064
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. 710-4926
Mfr. Part No.TEMT1020
BrandVishay
$0.909
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 -
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