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 283 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. 908-7040
Mfr. Part No.OP913WSL
BrandOptek
€12.52
Each
units
Infrared - - - - - 30 ° - 2 Through Hole TO-5 9.4 (Dia.) x 4.57 Hmm - 9.4mm
RS Stock No. 912-8567
Mfr. Part No.SFH 309-4/5
€0.139
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. 170-2455
Mfr. Part No.PT4800E0000F
BrandSharp
€0.333
Each (In a Bag of 1000)
units
- 3.5µs 3µs 1 1000µA 100000nA 70 ° NPN 2 Through Hole Side Looker 3 x 1.5 x 3.5mm 20mA -
RS Stock No. 170-9651
Mfr. Part No.SFH 3710-Z
€0.321
Each (On a Reel of 3000)
units
Infrared, Ultraviolet, Visible Light - - 1 12.5µA 3nA 120 ° NPN 2 Surface Mount SMD 2.1 x 1.35 x 0.9mm 20mA -
RS Stock No. 182-8113
Mfr. Part No.RPT-37PB3F
BrandROHM
€0.495
Each (In a Pack of 20)
units
Infrared 10µs 10µs 1 2 (Minimum)mA 0.5µA ±36 ° - 2 Through Hole - 3.8 Dia. x 5.2mm 30mA 3.8mm
RS Stock No. 315-860
Mfr. Part No.PT480FE0000F
BrandSharp
€0.24
Each
units
- 3500ns 3000ns 1 3000µA 100nA 26 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 4mm 20mA -
RS Stock No. 918-9578
Mfr. Part No.TEMT7000X01
BrandVishay
€0.163
Each (On a Reel of 3000)
units
Infrared, Visible Light - - 1 675µA 100nA 120 ° NPN 2 Surface Mount - 2 x 1.25 x 0.85mm 20mA -
RS Stock No. 654-8873
Mfr. Part No.SFH 320-3/4-Z
€0.235
Each (In a Pack of 10)
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. 915-4884
Mfr. Part No.SFH 325-4-Z
€0.337
Each (In a Pack of 20)
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. 184-7255
Mfr. Part No.1541141NAA570
€0.298
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. 136-9672
Mfr. Part No.BPX 81-3/4
€1.098
Each (In a Pack of 10)
units
- 6µs 6µs 1 >400µA 1 (≤ 50)nA ±18 ° NPN 2 Through Hole Miniature Array 2.2 x 2 x 3.45mm 50mA -
RS Stock No. 146-2107
Mfr. Part No.QSB363
€0.16
Each (In a Bag of 1000)
units
Infrared 15µs 15µs 1 - 100nA 12 ° - 2 Surface Mount Subminiature 2.7 x 2.2 x 3mm 1.5mA -
RS Stock No. 168-5381
Mfr. Part No.SFH 320 FA-4-Z
€0.166
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. 171-5419
Mfr. Part No.RPT-38PB3F
BrandROHM
€0.75
Each
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. 665-5366
Mfr. Part No.SFH 309 FA-5/6
€0.363
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 -
New
RS Stock No. 215-1785
Mfr. Part No.1541021NCA170
€0.292
Each (On a Reel of 5000)
units
Infrared - - 1 0.02µA - 110 ° - 2 Through Hole 1002 - - -
RS Stock No. 665-5274
Mfr. Part No.BPX 85
€8.70
Each
units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 654-8536
Mfr. Part No.SFH 313 FA-2/3
€0.488
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. 654-8542
Mfr. Part No.SFH 310-2/3
€0.406
Each (In a Pack of 10)
units
Infrared, Visible Light 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. 136-9671
Mfr. Part No.BPX 81-3/4
€0.474
Each (In a Bag of 1000)
units
- 6µs 6µs 1 >400µA 1 (≤ 50)nA ±18 ° NPN 2 Through Hole Miniature Array 2.2 x 2 x 3.45mm 50mA -