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. 170-9652
Mfr. Part No.SFH 3605-2/3
TWD10.20
Each (On a Reel of 2000)
units
Infrared, Visible Light 45µs 45µs 1 320µA 50nA 40 ° - 2 Surface Mount MIDLED 3.3 x 2.35 x 1.7mm 15mA -
RS Stock No. 665-5252
Mfr. Part No.BPX 43-5
TWD182.80
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. 665-5445
Mfr. Part No.SFH 3600-Z
TWD24.70
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 -
New
RS Stock No. 215-1785
Mfr. Part No.1541021NCA170
TWD11.60
Each (On a Reel of 5000)
units
Infrared - - 1 0.02µA - 110 ° - 2 Through Hole 1002 - - -
RS Stock No. 168-5377
Mfr. Part No.SFH 309-4
TWD7.00
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 4500µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 665-5454
Mfr. Part No.SFH 3600-3/4
TWD12.60
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. 665-5366
Mfr. Part No.SFH 309 FA-5/6
TWD13.70
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. 168-5317
Mfr. Part No.SFH 320-3/4-Z
TWD6.40
Each (On a Reel of 2000)
units
Infrared, Visible Light 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 768-9354
Mfr. Part No.TEMT6000X01
BrandVishay
TWD41.80
Each (In a Bag of 5)
units
Visible Light - - 1 50µA 50nA ±60 ° - 3 Surface Mount 1206 4 x 2 x 1.05mm 20mA -
RS Stock No. 170-9649
Mfr. Part No.SFH 325-4-Z
TWD9.10
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. 171-5580
Mfr. Part No.RPT-38PB3F
BrandROHM
TWD25.50
Each (In a Pack of 20)
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. 913-3294
Mfr. Part No.SFH 313 FA
TWD7.30
Each (In a Bag of 1000)
units
Infrared 14µs 14µs 1 - 200nA 20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 915-4888
Mfr. Part No.SFH 3400-Z
TWD19.70
Each (In a Pack of 20)
units
Infrared, Visible Light 24µs 24µs 1 - 100nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 50mA -
RS Stock No. 166-1740
Mfr. Part No.KDT00030TR
TWD6.10
Each (On a Reel of 3000)
units
- - - 1 1100µA 100nA - NPN 2 Surface Mount - 1.7 x 0.8 x 0.6mm - -
RS Stock No. 168-5169
Mfr. Part No.SFH 3410-3/4-Z
TWD16.40
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. 708-2683
Mfr. Part No.BPV11F
BrandVishay
TWD28.20
Each (In a Bag of 10)
units
Infrared 5µs 6µs 1 9000µA 50nA 30 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.75 x 5.75 x 8.6mm 50mA -
RS Stock No. 912-8560
Mfr. Part No.SFH 314 FA-2/3
TWD8.00
Each (In a Bag of 1000)
units
Infrared 14µs 14µs 1 8600µA 200nA 80 ° NPN 2 Through Hole T-1 3/4 5.9 x 5.9 x 6.9mm 50mA -
RS Stock No. 805-0517
Mfr. Part No.QSB363
TWD16.60
Each (In a Pack of 20)
units
Infrared 15µs 15µs 1 - 100nA 12 ° - 2 Surface Mount Subminiature 2.7 x 2.2 x 3mm 1.5mA -
RS Stock No. 168-5367
Mfr. Part No.BPX 86
TWD244.90
Each (In a Bag of 100)
units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 178-0647
Mfr. Part No.RPM-20PB
BrandROHM
TWD13.50
Each (In a Pack of 20)
units
Visible Light 10µs 10µs - 0.5 (Minimum)mA 0.5µA ±14 ° PNP 2 Through Hole DIP 4.3 x 3.2 x 4.4mm 30mA -