Phototransistors, Semiconductor Device | RS
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    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

    304 Products showing for Phototransistors

    Optek
    Infrared
    -
    -
    1
    4000µA
    100nA
    -
    NPN
    2
    Through Hole
    TO-18
    5.72 x 5.72 x 7.62mm
    50mA
    -
    890nm
    -
    Maximum of 890 nm
    Vishay
    Day Light
    2.3µs
    2µs
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Vishay
    Infrared
    2.3µs
    2µs
    1
    7000µA
    200nA
    30 °
    NPN
    2
    Surface Mount
    Subminiature
    2.5 x 2 x 2.7mm
    50mA
    -
    1000nm
    730nm
    730 → 1000 nm
    Vishay
    Near Infrared Radiation, Visible Infrared Radiation
    2µs
    6µs
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Vishay
    Near Infrared Radiation, Visible Infrared Radiation
    2µs
    6µs
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ams OSRAM
    Infrared, Ultraviolet, Visible Light
    7µs
    7µs
    1
    11200µA
    200nA
    24 °
    NPN
    2
    Through Hole
    3mm (T-1)
    4 x 4 x 5.2mm
    15mA
    -
    1150nm
    380nm
    380 → 1150 nm
    Vishay
    Infrared, Visible Light
    -
    -
    1
    9000µA
    100nA
    ±15 °
    -
    2
    Surface Mount
    Subminiature
    2.3 x 2.3 x 2.77mm
    50mA
    -
    1090nm
    470nm
    470 → 1090 nm
    Vishay
    Infrared
    7.7µs
    4.3µs
    1
    2.7mA
    -
    ± 35 °
    -
    2
    Surface Mount
    SMD
    -
    -
    -
    -
    -
    -
    ams OSRAM
    Infrared, Visible Light
    7µs
    7µs
    1
    1000µA
    50nA
    120 °
    NPN
    2
    Surface Mount
    PLCC
    3.4 x 3 x 2mm
    15mA
    -
    1150nm
    450nm
    450 → 1150 nm
    ams OSRAM
    Infrared
    7µs
    7µs
    1
    2800µA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ams OSRAM
    Infrared
    7µs
    7µs
    1
    2800µA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ams OSRAM
    Infrared
    7µs
    7µs
    1
    80µA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Wurth Elektronik
    Infrared
    -
    -
    1
    0.02µA
    -
    30 °
    -
    2
    Through Hole
    5mm (T-1 3/4)
    -
    -
    -
    -
    -
    -
    Wurth Elektronik
    Infrared
    -
    -
    1
    -
    100 (Collector Emitter)nA
    30 °
    NPN
    2
    Surface Mount
    1206
    3.2 x 1.6 x 1.85mm
    20mA
    -
    1100nm
    700nm
    700 → 1100 nm
    onsemi
    Infrared
    15µs
    15µs
    1
    -
    100nA
    12 °
    -
    2
    Surface Mount
    Subminiature
    2.7 x 2.2 x 3mm
    1.5mA
    -
    940nm
    -
    940 nm
    Vishay
    Near Infrared Radiation, Visible Infrared Radiation
    -
    -
    -
    9mA
    -
    15 °
    -
    2
    Surface Mount
    GW
    -
    -
    -
    -
    -
    -
    Vishay
    -
    5µs
    4.8µs
    1
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Vishay
    Infrared, Visible Light
    2.3µs
    2µs
    1
    8000µA
    200nA
    ±25 °
    NPN
    2
    Through Hole
    3mm (T-1)
    3 x 4.5mm
    50mA
    3mm
    1080nm
    450nm
    450 → 1080 nm
    ams OSRAM
    Infrared, Visible Light
    7µs
    7µs
    1
    1000µA
    50nA
    120 °
    NPN
    2
    Surface Mount
    PLCC
    3.4 x 3 x 2mm
    15mA
    -
    1150nm
    450nm
    450 → 1150 nm
    ams OSRAM
    Infrared, Ultraviolet, Visible Light
    7µs
    7µs
    1
    7200µA
    200nA
    24 °
    NPN
    2
    Through Hole
    3mm (T-1)
    4 x 4 x 5.2mm
    15mA
    -
    1150nm
    380nm
    380 → 1150 nm
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