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 61 - 80 of 273 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. 184-6983
Mfr. Part No.1541411NBA210
€0.174
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. 665-5413
Mfr. Part No.SFH 320-3-Z
€0.266
Each (In a Pack of 10)
units
Infrared, Visible Light 7µs 7µs 1 650µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 912-8514
Mfr. Part No.SFH 309 FA-4/5
€0.145
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 7200µA 200nA 24 ° NPN 2 Through Hole T-1 4 x 4 x 5.2mm 15mA -
RS Stock No. 654-9163
Mfr. Part No.SFH 305-2/3
€0.826
Each (In a Pack of 5)
units
Infrared, Visible Light 6µs 6µs 1 1900µA 50nA 32 ° NPN 2 Through Hole - 2.1 x 1.15 x 3.6mm 50mA -
RS Stock No. 166-1740
Mfr. Part No.KDT00030TR
€0.161
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. 666-6621
Mfr. Part No.PT100MC0MP
BrandSharp
€0.164
Each (In a Pack of 10)
units
Infrared 6µs 5µs - - 100nA 15 ° NPN 2 Surface Mount - 3 x 1.4 x 2.2mm 20mA -
RS Stock No. 165-3001
Mfr. Part No.TEKT5400S-ASZ
BrandVishay
€0.399
Each (In a Bag of 2000)
units
Infrared 5µs 6µs 1 4000µA 100nA 74 ° NPN 2 Through Hole Side Looker 5 x 2.65 x 5mm 100mA -
RS Stock No. 168-5170
Mfr. Part No.SFH 3410-1/2-Z
€0.421
Each (On a Reel of 2000)
units
Infrared, Ultraviolet, Visible Light - - 1 10µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
RS Stock No. 184-7255
Mfr. Part No.1541141NAA570
€0.272
Each (In a Pack of 25)
units
Infrared, Visible Light - - 1 - 100 (Collector Emitter)nA 150 ° NPN 2 Surface Mount 1104 3 x 1 x 2.02mm 20mA -
RS Stock No. 708-2822
Mfr. Part No.BPW96C
BrandVishay
€0.615
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. 168-5320
Mfr. Part No.SFH 3400-2/3-Z
€0.353
Each (On a Reel of 2000)
units
Infrared, Visible Light 24µs 24µs 1 2600µA 100nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 50mA -
RS Stock No. 184-1081
Mfr. Part No.QRD1113
€1.096
Each (In a Bag of 100)
units
Infrared 50µs 10µs 1 - 100nA - - 4 Through Hole Custom 4L 4.39 x 6.1 x 4.65mm 0.3 (Minimum)mA -
RS Stock No. 497-5302
Mfr. Part No.SFH 320 FA-Z
€0.206
Each (In a Pack of 5)
units
Infrared 7µs 7µs 1 16µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 654-8738
Mfr. Part No.SFH 3100 F
€0.516
Each (In a Pack of 10)
units
Infrared 9µs 7µs 1 400µA 50nA 28 ° NPN 2 Through Hole Side Looker 3.1 x 2.2 x 4.1mm 50mA -
RS Stock No. 169-7607
Mfr. Part No.SD5410-002
BrandHoneywell
€10.672
Each (In a Bag of 100)
units
Infrared 75µs 75µs 1 4000µA 250nA 12 ° NPN 3 Through Hole TO-46 5.56 x 5.56 x 3.89mm - -
RS Stock No. 146-0778
Mfr. Part No.PT100MF0MP
BrandSharp
€0.178
Each (In a Pack of 25)
units
Infrared 6µs 5µs 1 3.45mA 100nA ±15 ° Positive 2 Surface Mount SMD 3 x 1.5 x 2.2mm 20mA -
RS Stock No. 168-5381
Mfr. Part No.SFH 320 FA-4-Z
€0.191
Each (On a Reel of 2000)
units
Infrared 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 184-1562
Mfr. Part No.QRD1113
€23.26
1 Pack of 10
Pack(s)
Infrared 50µs 10µs 1 - 100nA - - 4 Through Hole Custom 4L 4.39 x 6.1 x 4.65mm 0.3 (Minimum)mA -
RS Stock No. 168-5316
Mfr. Part No.SFH 314-2/3
€0.181
Each (On a Tape of 1000)
units
Infrared, Visible Light 14µs 14µs 1 8600µA 200nA 80 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 6.9mm 50mA -
RS Stock No. 170-2390
Mfr. Part No.PT480FE0000F
BrandSharp
€0.233
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 -
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 Ga As infrared diode emitter, which is optically coupled to a silicon planar phototransistor detector, and is incorporated in a plastic ...
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 ...
This family of NPN silicon phototransistors, from OSRAM ...
Description:
This family of NPN silicon phototransistors, from OSRAM Opto Semiconductors, are a range of 5mm (T-1 3/4) through-hole devices They have both clear or black plastic lenses, the diffused lenses being used for daylight filters. Suitable applications include; computer-controlled flashes, ...
This family of NPN silicon phototransistors, from OSRAM ...
Description:
This family of NPN silicon phototransistors, from OSRAM Opto Semiconductors, are a range of 5mm (T-1 3/4) through-hole devices They have both clear or black plastic lenses, the diffused lenses being used for daylight filters. Suitable applications include; computer-controlled flashes, ...