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

...
Read more Read less

Filters

Viewing 1 - 20 of 275 products
Results per page
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. 912-8545
Mfr. Part No.SFH 313 FA-2/3
PHP11.167
Each (In a Bag of 1000)
units
Infrared 14µs 14µs 1 12500µA 200nA 20 ° NPN 2 Through Hole T-1 3/4 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 654-8536
Mfr. Part No.SFH 313 FA-2/3
PHP26.247
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. 168-5374
Mfr. Part No.SFH 309 FA-5/6
PHP8.619
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. 665-5366
Mfr. Part No.SFH 309 FA-5/6
PHP20.426
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. 577-544
Mfr. Part No.PT480E
BrandSharp
PHP19.45
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. 177-5961
Mfr. Part No.PT480E
BrandSharp
PHP15.759
Each (On a Reel of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 654-7993
Mfr. Part No.LPT 80A
PHP31.897
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. 912-8567
Mfr. Part No.SFH 309-4/5
PHP7.977
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. 168-5289
Mfr. Part No.LPT 80A
PHP12.198
Each (In a Box of 2000)
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. 654-8801
Mfr. Part No.SFH 309-4/5
PHP21.254
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 455-7954
Mfr. Part No.OPL550
BrandOptek
PHP77.31
Each (In a Pack of 5)
units
Infrared 25ns 25ns 1 - - - - 3 Through Hole Side Looker 4.45 x 2.34 x 5.72mm - -
RS Stock No. 908-7025
Mfr. Part No.OP550A
BrandOptek
PHP32.046
Each (In a Pack of 50)
units
Visible Light - - 1 - 100nA - NPN 2 Through Hole Side-Looking 4.57 x 2.54 x 5.84mm 2.55mA -
RS Stock No. 170-0779
Mfr. Part No.OPL550
BrandOptek
PHP75.293
Each (In a Bag of 50)
units
Infrared 25ns 25ns 1 - - - - 3 Through Hole Side Looker 4.45 x 2.34 x 5.72mm - -
RS Stock No. 169-7604
Mfr. Part No.SDP 8406-002
BrandHoneywell
PHP61.689
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. 171-4867
Mfr. Part No.SDP 8406-002
BrandHoneywell
PHP74.71
Each
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. 170-2390
Mfr. Part No.PT480FE0000F
BrandSharp
PHP18.032
Each (In a Bag of 1000)
units
- 3.5µs 3µs 1 3000µA 100nA 26 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 4mm 20mA -
RS Stock No. 177-4916
Mfr. Part No.PT480FE0000F
BrandSharp
PHP18.032
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. 315-860
Mfr. Part No.PT480FE0000F
BrandSharp
PHP38.42
Each
units
- 3500ns 3000ns 1 3000µA 100nA 26 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 4mm 20mA -
RS Stock No. 700-0776
Mfr. Part No.TEPT4400
BrandVishay
PHP23.285
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. 145-1923
Mfr. Part No.TEPT4400
BrandVishay
PHP13.129
Each (In a Bag of 1000)
units
Visible Light - - 1 200µA 50nA 60 ° - 2 Through Hole 3mm (T-1) 3.2 x 3.2 x 4.5mm 20mA -
Related Products
The SFH6156 features a variety of transfer ratios, ...
Description:
The SFH6156 features a variety of transfer ratios, low coupling capacitance and high isolation voltage. This coupler has a GaAs infrared diode emitter, which is optically coupled to a silicon planar phototransistor detector, and is incorporated in a plastic SMD ...
The PT3009 series are constructed from a Gallium ...
Description:
The PT3009 series are constructed from a Gallium Arsenide Infrared Emitting Diode and Silicon Triac Bi directional (double Thyristor) Detector, housed in a plastic package. Surface Mount Option Available. All electrical parameters are 100% tested by manufacturing. Specifications are guaranteed ...
Fairchild Semiconductor's QTLP610CPD IR phototransistor is in a ...
Description:
Fairchild Semiconductor's QTLP610CPD IR phototransistor is in a surface mount (SMD) right angle package. It has a clear plastic domed lens. Features of the QTLP610CPD:NPN silicon phototransistorRight angle surface mount packageWater clear domed lensHigh photo sensitivityLow junction capacitanceFast response time. ...
The QSB363 series, from Fairchild Semiconductor, are a ...
Description:
The QSB363 series, from Fairchild Semiconductor, are a family of silicon IR phototransistors. They are in surface mount (SMD) subminiature packages with a T-3/4 (2mm) domed lens. The QSB363 IR phototransistors have a range of different lead types including gull-wing, ...