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 21 - 40 of 270 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. 168-5317
Mfr. Part No.SFH 320-3/4-Z
MYR1.04
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. 165-3001
Mfr. Part No.TEKT5400S-ASZ
BrandVishay
MYR1.85
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. 455-8014
Mfr. Part No.ST23G, C
BrandKodenshi
MYR4.892
Each (In a Pack of 5)
units
Infrared 4.8µs 3.2µs - 20mA 100nA 30 ° NPN 2 Through Hole 5mm (T-1 3/4) 4.6 x 2.54 x 4.6mm 40mA -
RS Stock No. 708-7972
Mfr. Part No.TEKT5400S-ASZ
BrandVishay
MYR4.74
Each (In a Pack of 10)
units
Infrared 5µs 6µs 1 4000µA 100nA 74 ° NPN 2 Through Hole Side Looker 5 x 2.65 x 5mm 100mA -
RS Stock No. 806-1763
Mfr. Part No.KDT00030TR
MYR1.83
Each (In a Pack of 20)
units
- - - 1 1100µA 100nA - NPN 2 Surface Mount - 1.7 x 0.8 x 0.6mm - -
RS Stock No. 654-8047
Mfr. Part No.SFH 300 FA-3/4
MYR2.25
Each (In a Pack of 10)
units
Infrared 10µs 10µs 1 7700µA 50nA 50 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 9mm 50mA -
RS Stock No. 146-1626
Mfr. Part No.SFH 310 FA
MYR0.65
Each (In a Bag of 2000)
units
Infrared 12µs 12µs 1 - 50nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.8mm 50mA -
RS Stock No. 168-5553
Mfr. Part No.SFH 309 FA-4
MYR0.74
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 4500µA 1 (≤ 50)nA ±12 ° NPN 2 Through Hole 3mm (T-1) 3.1 (Dia.) x 5.2mm 15mA 3.1mm
RS Stock No. 708-2810
Mfr. Part No.BPW77NB
BrandVishay
MYR13.95
Each (In a Bag of 5)
units
Infrared, Visible Light 5µs 6µs 1 20000µA 100nA 20 ° NPN 3 Through Hole TO-18 5.5 x 5.5 x 6.15mm 50mA -
RS Stock No. 654-8918
Mfr. Part No.SFH 3710-3/4-Z
MYR2.668
Each (In a Pack of 5)
units
Infrared, Ultraviolet, Visible Light - - 1 570µA 3nA 120 ° NPN 2 Surface Mount - 2.1 x 1.35 x 0.9mm 20mA -
RS Stock No. 700-0760
Mfr. Part No.BPW85A
BrandVishay
MYR2.10
Each (In a Pack of 10)
units
Infrared, Visible Light 2.3µs 2µs 1 - 200nA 50 ° NPN 2 Through Hole 3mm (T-1) 3.4 x 3.4 x 4.5mm 50mA -
RS Stock No. 805-0549
Mfr. Part No.QTLP610CPDTR
MYR2.97
Each (In a Pack of 10)
units
Infrared 15µs 15µs 1 - 100nA 80 ° - 2 Surface Mount - 3.2 x 2.2 x 1.1mm 0.5mA -
RS Stock No. 170-0728
Mfr. Part No.OPL810
BrandOptek
MYR13.46
Each (In a Bag of 25)
units
Infrared 70ns 70ns 1 - - - - 3 Through Hole TO-18 5.84 x 5.84 x 6.86mm - -
RS Stock No. 912-8576
Mfr. Part No.SFH 3710-3/4-Z
MYR1.615
Each (On a Reel of 3000)
units
Infrared, Ultraviolet, Visible Light - - 1 570µA 3nA 120 ° NPN 2 Surface Mount SMD 2.1 x 1.35 x 0.9mm 20mA -
RS Stock No. 168-5372
Mfr. Part No.SFH 300 FA
MYR0.989
Each (In a Bag of 1000)
units
Infrared 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. 815-1250
Mfr. Part No.BPW77NA
BrandVishay
MYR14.11
Each (In a Pack of 5)
units
Infrared, Visible Light 5µs 6µs 1 15000µA 100nA ±10 ° NPN 3 Through Hole TO-18 4.69 x 6.15mm 50mA 4.69mm
RS Stock No. 876-8710
Mfr. Part No.SFH 309 FA-4
MYR2.05
Each (In a Pack of 25)
units
Infrared 7µs 7µs 1 4500µA 1 (≤ 50)nA ±12 ° NPN 2 Through Hole 3mm (T-1) 3.1 (Dia.) x 5.2mm 15mA 3.1mm
RS Stock No. 168-5310
Mfr. Part No.SFH 310-2/3
MYR0.74
Each (On a Tape of 2000)
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. 912-8560
Mfr. Part No.SFH 314 FA-2/3
MYR1.019
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. 195-849
Mfr. Part No.SDP8436-003
BrandHoneywell
MYR8.74
Each
units
- 15µs 15µs 1 17500µA 100nA 18 ° NPN 2 Through Hole Side Looker 4.57 x 4.29 x 3.3mm - -
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 ...