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 261 - 275 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. 912-8532
Mfr. Part No.SFH 3204-Z
MYR1.608
Each (On a Reel of 3000)
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. 170-0768
Mfr. Part No.OP593B
BrandOptek
MYR3.941
Each (In a Bag of 500)
units
Infrared - - 1 4000µA 100nA - NPN 2 Through Hole TO-18 5.72 x 5.72 x 7.62mm 50mA -
RS Stock No. 166-1947
Mfr. Part No.QSE114
MYR1.058
Each (In a Bag of 500)
units
Infrared 8µs 8µs 1 - 100nA 25 ° - 2 Through Hole Side Looker 4.44 x 2.54 x 5.08mm 1.50mA -
RS Stock No. 876-8694
Mfr. Part No.BPX 38-4
MYR21.55
Each (In a Pack of 5)
units
Infrared 15µs 15µs 1 2300µA 20 (≤ 100)nA ±40 ° NPN 3 Through Hole TO-18 4.8 (Dia.) x 5.5mm 50mA 4.8mm
RS Stock No. 912-8551
Mfr. Part No.SFH 3100 F
MYR1.686
Each (In a Bag of 2000)
units
Infrared 9µs 7µs 1 400µA 50nA 28 ° NPN 2 Through Hole 3 mm 3.1 x 2.2 x 4.1mm 50mA -
RS Stock No. 171-4867
Mfr. Part No.SDP 8406-002
BrandHoneywell
MYR6.47
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. 665-5356
Mfr. Part No.SFH 309
MYR1.80
Each (In a Pack of 20)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 - 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 710-4926
Mfr. Part No.TEMT1020
BrandVishay
MYR2.65
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 -
RS Stock No. 665-5372
Mfr. Part No.SFH 309-5
MYR5.214
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. 665-5347
Mfr. Part No.SFH 300
MYR1.88
Each (In a Pack of 20)
units
Infrared, Visible Light 10µs 10µs 1 - 50nA 50 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 665-5369
Mfr. Part No.SFH 309 FA-3/4
MYR1.77
Each (In a Pack of 10)
units
Infrared 7µs 7µs 1 4500µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 778-1377
Mfr. Part No.SFH 3711
MYR2.54
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. 455-7954
Mfr. Part No.OPL550
BrandOptek
MYR7.062
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. 177-4916
Mfr. Part No.PT480FE0000F
BrandSharp
MYR1.30
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. 700-0782
Mfr. Part No.VEMT2020X01
BrandVishay
MYR2.55
Each (In a Pack of 20)
units
Infrared - - 1 9000µA 100nA 30 ° NPN 2 Surface Mount - 2.3 x 2.3 x 2.77mm 50mA -
Related Products
The S13948-01SB photo IC has spectral response close ...
Description:
The S13948-01SB photo IC has spectral response close to human eye sensitivity. Two photosensitive areas are made on a single chip. Almost only the visible range can be measured by finding the difference between the two output signals in the ...
Spectral Response Close to Human EyeGood Output Linearity ...
Description:
Spectral Response Close to Human EyeGood Output Linearity Across Wide Illumination RangeSmall Footprint: 1.7 x 0.8 mmLow Profile: 0.6mmPhototransistor with Filter Technology.
The dome lens type series, from Stanley Electric, ...
Description:
The dome lens type series, from Stanley Electric, are a family of surface mount infrared (IR) phototransistors. They have either a water clear epoxy or a black epoxy daylight filter that cuts visible radiation below 700nm. Suitable applications for the ...
The OPL550 and OPL551 series, from Optek Technology, ...
Description:
The OPL550 and OPL551 series, from Optek Technology, are a family of photologic sensors. They feature a TTL/LSTTL compatible logic level output which is able to drive up to 8 TTL loads without additional circuitry. Suitable applications for the OPL550 ...