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


...
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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. 708-2810
Mfr. Part No.BPW77NB
BrandVishay
kr 36,724
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. 145-1931
Mfr. Part No.BPW77NB
BrandVishay
kr 20,35
Each (In a Bag of 1000)
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. 913-3281
Mfr. Part No.BPX 43-4/5
Brandams OSRAM
kr 33,10
Each (In a Bag of 1000)
Units
Infrared, Visible Light 18µs 18µs 1 15000µA 100nA 30 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 50mA -
RS Stock No. 665-5390
Mfr. Part No.SFH 313 FA-3/4
Brandams OSRAM
kr 6,479
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. 146-1626
Mfr. Part No.SFH 310 FA
Brandams OSRAM
kr 1,841
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. 168-5379
Mfr. Part No.SFH 313 FA-3/4
Brandams OSRAM
kr 2,681
Each (In a Bag of 1000)
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. 665-5388
Mfr. Part No.SFH 310 FA
Brandams OSRAM
kr 3,724
Each (In a Pack of 20)
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. 665-5243
Mfr. Part No.BPX 43-4/5
Brandams OSRAM
kr 55,858
Each (In a Pack of 5)
Units
Infrared, Visible Light 18µs 18µs 1 15000µA 100nA 30 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 50mA -
RS Stock No. 908-7034
Mfr. Part No.OP804SL
BrandOptek
kr 27,711
Each (In a Pack of 10)
Units
Infrared 7µs 7µs 1 - 100nA - NPN 3 Through Hole TO-18 5.84 (Dia.) x 6.86 Hmm 50mA 5.84mm
RS Stock No. 497-5302
Mfr. Part No.SFH 320 FA-Z
Brandams OSRAM
kr 7,544
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. 159-6490
Mfr. Part No.BPW96C
BrandVishay
kr 4,226
Each (In a Bag of 1000)
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. 665-5454
Mfr. Part No.SFH 3600-3/4
Brandams OSRAM
kr 3,35
Each (In a Pack of 10)
Units
Infrared, Visible Light 45µs 45µs 1 500µA 50nA 40 ° - 2 Surface Mount - 3.3 x 2.35 x 1.7mm 15mA -
RS Stock No. 168-5382
Mfr. Part No.SFH 320-3-Z
Brandams OSRAM
kr 4,446
Each (On a Reel of 2000)
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. 876-8710
Mfr. Part No.SFH 309 FA-4
Brandams OSRAM
kr 5,758
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. 159-6563
Mfr. Part No.BPW85
BrandVishay
kr 2,533
Each (In a Bag of 1000)
Units
Infrared, Visible Light 2.3µs 2µs 1 8000µA 200nA ±25 ° NPN 2 Through Hole 3mm (T-1) 3 x 4.5mm 50mA 3mm
RS Stock No. 165-2739
Mfr. Part No.VEMT2000X01
BrandVishay
kr 1,372
Each (On a Reel of 6000)
Units
Infrared - - 1 9000µA 100nA 30 ° NPN 2 Surface Mount - 2.3 x 2.3 x 2.77mm 50mA -
RS Stock No. 170-0727
Mfr. Part No.OP802WSL
BrandOptek
kr 32,614
Each (In a Bag of 25)
Units
Infrared 7µs 7µs 1 3000µA 100nA - NPN 3 Through Hole TO-18 5.84 x 5.84 x 5.13mm 50mA -
RS Stock No. 726-9436
Mfr. Part No.PS1195WB
kr 2,055
Each (In a Pack of 10)
Units
Infrared 9µs 8µs 1 7000µA 0.1µA 45 ° NPN 2 Surface Mount - 3.2 x 1.6 x 1.85mm 20mA -
RS Stock No. 915-4875
Mfr. Part No.SFH 3211 FA-3/4-Z
Brandams OSRAM
kr 1,608
Each (In a Pack of 20)
Units
Infrared 7µs 7µs 1 1000µA 200nA 120 ° NPN 2 Surface Mount SMD 3.4 x 3 x 2mm 15mA -
RS Stock No. 168-5310
Mfr. Part No.SFH 310-2/3
Brandams OSRAM
kr 2,047
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 -