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

    305 Products showing for Phototransistors

    ams OSRAM
    Infrared
    14µs
    14µs
    1
    12500µA
    200nA
    20 °
    NPN
    2
    Through Hole
    5mm (T-1 3/4)
    5.9 x 5.9 x 9mm
    50mA
    -
    1080nm
    740nm
    740 → 1080 nm
    Vishay
    Visible Light
    -
    -
    1
    200µA
    50nA
    60 °
    -
    2
    Through Hole
    3mm (T-1)
    3.2 x 3.2 x 4.5mm
    20mA
    -
    800nm
    440nm
    440 → 800 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
    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
    -
    -
    1
    350µA
    3nA
    120 °
    NPN
    2
    Surface Mount
    -
    2.1 x 1.35 x 0.9mm
    20mA
    -
    950nm
    350nm
    350 → 950 nm
    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
    Infrared
    2.3µs
    2µs
    1
    3200µA
    200nA
    60 °
    NPN
    2
    Through Hole
    T-1
    3.2 x 3.9 x 4.5mm
    50mA
    -
    1000nm
    875nm
    875 → 1000 nm
    Vishay
    Near Infrared Radiation, Visible Infrared Radiation
    2µs
    6µs
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ams OSRAM
    Infrared, Ultraviolet, Visible Light
    7µs
    7µs
    1
    7200µA
    200nA
    24 °
    NPN
    2
    Through Hole
    T-1
    4 x 4 x 5.2mm
    15mA
    -
    1150nm
    380nm
    380 → 1150 nm
    Vishay
    Infrared
    2.3µs
    2µs
    -
    7500µA
    200nA
    ±20 °
    NPN
    2
    Through Hole
    5mm (T-1 3/4)
    5 (Dia.) x 8.6mm
    50mA
    5mm
    1080nm
    450nm
    450 → 1080 nm
    ams OSRAM
    Infrared
    10µs
    10µs
    1
    7700µA
    50nA
    50 °
    NPN
    2
    Through Hole
    5mm (T-1 3/4)
    5.9 x 5.9 x 9mm
    50mA
    -
    1120nm
    730nm
    730 → 1120 nm
    ams OSRAM
    Infrared, Visible Light
    12µs
    12µs
    1
    5800µA
    50nA
    16 °
    NPN
    3
    Through Hole
    TO-18
    5.6 x 5.6 x 6.2mm
    100mA
    -
    1100nm
    400nm
    400 → 1100 nm
    ams OSRAM
    Infrared, Visible Light
    12µs
    12µs
    1
    5800µA
    50nA
    16 °
    NPN
    3
    Through Hole
    TO-18
    5.6 x 5.6 x 6.2mm
    100mA
    -
    1100nm
    400nm
    400 → 1100 nm
    onsemi
    Infrared
    7µs
    7µs
    1
    -
    100nA
    ±12 °
    -
    2
    Through Hole
    T-1 3/4
    6.1 Dia. x 8.77mm
    16mA
    6.1mm
    880nm
    -
    880 nm
    onsemi
    Infrared
    50µs
    10µs
    1
    -
    100nA
    -
    -
    4
    Through Hole
    Custom 4L
    4.39 x 6.1 x 4.65mm
    1 (Minimum)mA
    -
    940nm
    -
    940 nm
    Vishay
    Visible Light
    -
    -
    -
    24µA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    onsemi
    Infrared
    8µs
    8µs
    1
    -
    100nA
    25 °
    -
    2
    Through Hole
    Side Looker
    4.44 x 2.54 x 5.08mm
    1.50mA
    -
    880nm
    -
    880 nm
    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
    Vishay
    Infrared
    -
    -
    1
    9000µA
    100nA
    30 °
    NPN
    2
    Surface Mount
    -
    2.3 x 2.3 x 2.77mm
    50mA
    -
    970nm
    790nm
    790 → 970 nm
    Vishay
    Infrared
    -
    -
    1
    675µA
    100nA
    120 °
    NPN
    2
    Surface Mount
    -
    2 x 1.25 x 0.85mm
    20mA
    -
    1010nm
    750nm
    750 → 1010 nm
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