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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Beskrivning Pris 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
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