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. 170-9642
Mfr. Part No.SFH 3201-Z
MYR1.65
Each (On a Reel of 1000)
units
Infrared, Visible Light 24µs 24µs 1 - 200nA 120 ° NPN 6 Surface Mount SMD 4.2 x 3.4 x 2.1mm 50mA -
RS Stock No. 184-1081
Mfr. Part No.QRD1113
MYR4.463
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. 915-4862
Mfr. Part No.SFH 3201-Z
MYR3.99
Each (In a Pack of 20)
units
Infrared, Visible Light 24µs 24µs 1 - 200nA 120 ° NPN 6 Surface Mount SMD 4.2 x 3.4 x 2.1mm 50mA -
RS Stock No. 168-5314
Mfr. Part No.SFH 310 FA-2/3
MYR0.74
Each (On a Tape of 2000)
units
Infrared 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. 919-0900
Mfr. Part No.TEMT1000
BrandVishay
MYR1.15
Each (On a Reel of 1000)
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. 477-6335
Mfr. Part No.PT100MF0MP1
BrandSharp
MYR2.65
Each (In a Pack of 5)
units
Infrared 6µs 5µs 1 - 100nA 30 ° NPN 2 Surface Mount - 3 x 1.5 x 2.2mm 20mA -
RS Stock No. 168-5374
Mfr. Part No.SFH 309 FA-5/6
MYR0.684
Each (In a Bag of 2000)
units
Infrared 7µs 7µs 1 11200µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 170-9649
Mfr. Part No.SFH 325-4-Z
MYR1.483
Each (On a Reel of 2000)
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. 665-5401
Mfr. Part No.SFH 320 FA-4-Z
MYR1.378
Each (In a Pack of 10)
units
Infrared 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS Stock No. 665-5277
Mfr. Part No.BPX 86
MYR52.61
Each
units
- - - - - - - - 6 Through Hole DIP 7.4 x 2.1 x 3.6mm - -
RS Stock No. 665-5404
Mfr. Part No.SFH 314 FA
MYR1.938
Each (In a Pack of 20)
units
Infrared 14µs 14µs 1 - 200nA 80 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 6.9mm 50mA -
RS Stock No. 915-4878
Mfr. Part No.SFH 325-Z
MYR1.314
Each (In a Pack of 25)
units
- 7µs 7µs 1 - 100nA ±60 ° Positive 2 Surface Mount PLCC 4.2 x 3.8 x 4.2mm 15mA -
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. 912-8542
Mfr. Part No.SFH 3410-2/3-Z
MYR2.40
Each (On a Reel of 2000)
units
Infrared, Ultraviolet, Visible Light - - 1 16µA 3nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 20mA -
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