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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Viewing 1 - 20 of 28 products
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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
New
RS Stock No. 215-1764
Mfr. Part No.1540051NC2590
MYR1.54
Each (In a Pack of 25)
units
Infrared - - 1 0.02µA - 25 ° - 2 Through Hole 5mm (T-1 3/4) - - -
New
RS Stock No. 215-1765
Mfr. Part No.1540052NA3090
MYR1.132
Each (On a Reel of 500)
units
Infrared - - 1 0.02µA - 30 ° - 2 Through Hole 5mm (T-1 3/4) - - -
RS Stock No. 184-6984
Mfr. Part No.1541411NEA210
MYR0.967
Each (On a Reel of 2000)
units
Infrared - - 1 - 100 (Collector Emitter)nA 120 ° NPN 2 Surface Mount 3528 3.5 x 2.8 x 1.9mm 20mA -
RS Stock No. 184-6982
Mfr. Part No.1540601NBA500
MYR0.967
Each (On a Reel of 4000)
units
Infrared, Visible Light - - 1 - 100 (Collector Emitter)nA 150 ° NPN 2 Surface Mount 0603 1.6 x 0.8 x 0.8mm 20mA -
RS Stock No. 184-6983
Mfr. Part No.1541411NBA210
MYR0.967
Each (On a Reel of 2000)
units
Infrared, Visible Light - - 1 - 100 (Collector Emitter)nA 120 ° NPN 2 Surface Mount 3528 3.5 x 2.8 x 1.9mm 20mA -
RS Stock No. 184-7228
Mfr. Part No.1541201NC3060
MYR1.479
Each (In a Pack of 25)
units
Infrared - - 1 - 100 (Collector Emitter)nA 30 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.85mm 20mA -
New
RS Stock No. 215-1761
Mfr. Part No.1540032NA3090
MYR1.488
Each (In a Pack of 25)
units
Infrared - - 1 0.02µA - 30 ° - 2 Through Hole 3mm (T-1) - - -
New
RS Stock No. 215-1788
Mfr. Part No.1541201NBA300
MYR1.122
Each (In a Pack of 50)
units
Infrared - - 1 0.02µA - 130 ° - 2 Through Hole 1206 - - -
New
RS Stock No. 215-1760
Mfr. Part No.1540032NA3090
MYR1.132
Each (On a Reel of 500)
units
Infrared - - 1 0.02µA - 30 ° - 2 Through Hole 3mm (T-1) - - -
New
RS Stock No. 215-1766
Mfr. Part No.1540052NA3090
MYR1.488
Each (In a Pack of 25)
units
Infrared - - 1 0.02µA - 30 ° - 2 Through Hole 5mm (T-1 3/4) - - -
New
RS Stock No. 215-1775
Mfr. Part No.1540801NBA300
MYR0.904
Each (On a Reel of 4000)
units
Infrared - - 1 0.02µA - 130 ° - 2 Through Hole 0805 - - -
New
RS Stock No. 215-1763
Mfr. Part No.1540051NC2590
MYR1.168
Each (On a Reel of 500)
units
Infrared - - 1 0.02µA - 25 ° - 2 Through Hole 5mm (T-1 3/4) - - -
New
RS Stock No. 215-1785
Mfr. Part No.1541021NCA170
MYR1.54
Each (On a Reel of 5000)
units
Infrared - - 1 0.02µA - 110 ° - 2 Through Hole 1002 - - -
RS Stock No. 184-6987
Mfr. Part No.1541201NEA400
MYR0.967
Each (On a Reel of 3000)
units
Infrared - - 1 - 100 (Collector Emitter)nA 140 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.1mm 20mA -
RS Stock No. 184-7241
Mfr. Part No.1541201NEA400
MYR1.438
Each (In a Pack of 25)
units
Infrared - - 1 - 100 (Collector Emitter)nA 140 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.1mm 20mA -
RS Stock No. 184-6985
Mfr. Part No.1541201NC3060
MYR0.945
Each (On a Reel of 2000)
units
Infrared - - 1 - 100 (Collector Emitter)nA 30 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.85mm 20mA -
New
RS Stock No. 215-1786
Mfr. Part No.1541021NCA170
MYR2.141
Each (In a Pack of 25)
units
Infrared - - 1 0.02µA - 110 ° - 2 Through Hole 1002 - - -
New
RS Stock No. 215-1767
Mfr. Part No.1540601NEA200
MYR0.904
Each (On a Reel of 5000)
units
Infrared - - 1 0.02µA - 120 ° - 2 Through Hole 0603 (0201) - - -
RS Stock No. 184-7255
Mfr. Part No.1541141NAA570
MYR1.50
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 -
New
RS Stock No. 215-1776
Mfr. Part No.1540801NBA300
MYR1.122
Each (In a Pack of 50)
units
Infrared - - 1 0.02µA - 130 ° - 2 Through Hole 0805 - - -