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

    289 Products showing for Phototransistors

    OSRAM Opto Semiconductors
    Infrared, Ultraviolet, Visible Light
    -
    -
    1
    12.5µA
    3nA
    120 °
    NPN
    2
    Surface Mount
    SMD
    2.1 x 1.35 x 0.9mm
    20mA
    -
    950nm
    350nm
    350 → 950 nm
    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
    OSRAM Opto Semiconductors
    Infrared, Ultraviolet, Visible Light
    -
    -
    1
    12.5µA
    3nA
    120 °
    NPN
    2
    Surface Mount
    SMD
    2.1 x 1.35 x 0.9mm
    20mA
    -
    950nm
    350nm
    350 → 950 nm
    Optek
    Infrared
    7µs
    7µs
    1
    3000µA
    100nA
    -
    NPN
    3
    Through Hole
    TO-18
    5.84 x 5.84 x 5.13mm
    50mA
    -
    -
    -
    -
    ams OSRAM
    Infrared
    8µs
    8µs
    -
    -
    50nA
    ±60 °
    NPN
    2
    Surface Mount
    Top LED
    3.4 x 3 x 1.92mm
    15mA
    -
    1120nm
    750nm
    750 → 1120 nm
    Vishay
    Infrared
    -
    -
    1
    675µA
    100nA
    120 °
    NPN
    2
    Surface Mount
    -
    2 x 1.25 x 0.85mm
    20mA
    -
    1010nm
    750nm
    750 → 1010 nm
    Wurth Elektronik
    Infrared
    -
    -
    1
    0.02µA
    -
    120 °
    -
    2
    Through Hole
    0603 (0201)
    -
    -
    -
    -
    -
    -
    onsemi
    -
    -
    -
    1
    1100µA
    100nA
    -
    NPN
    2
    Surface Mount
    -
    1.7 x 0.8 x 0.6mm
    -
    -
    630nm
    -
    Maximum of 630 nm
    Vishay
    Infrared, Visible Light
    5µs
    6µs
    1
    15000µA
    100nA
    ±10 °
    NPN
    3
    Through Hole
    TO-18
    4.69 x 6.15mm
    50mA
    4.69mm
    1080nm
    450nm
    450 → 1080 nm
    Vishay
    Infrared
    7.7µs
    4.3µs
    1
    2.7mA
    -
    ± 35 °
    -
    2
    Surface Mount
    SMD
    -
    -
    -
    -
    -
    -
    Vishay
    Near Infrared Radiation, Visible Infrared Radiation
    -
    -
    -
    9mA
    -
    15 °
    -
    2
    Surface Mount
    GW
    -
    -
    -
    -
    -
    -
    Wurth Elektronik
    Infrared
    -
    -
    1
    -
    100 (Collector Emitter)nA
    120 °
    NPN
    2
    Surface Mount
    3528
    3.5 x 2.8 x 1.9mm
    20mA
    -
    1100nm
    700nm
    700 → 1100 nm
    Vishay
    Infrared
    5µs
    6µs
    1
    9000µA
    50nA
    30 °
    NPN
    2
    Through Hole
    5mm (T-1 3/4)
    5.75 x 5.75 x 8.6mm
    50mA
    -
    980nm
    900nm
    900 → 980 nm
    Sharp
    Infrared
    6µs
    5µs
    1
    3.45mA
    100nA
    ±15 °
    Positive
    2
    Surface Mount
    SMD
    3 x 1.5 x 2.2mm
    20mA
    -
    910nm
    -
    Maximum of 910 nm
    Vishay
    Visible Light
    5µs
    6µs
    1
    4000µA
    100nA
    ±37 °
    NPN
    2
    Through Hole
    Side Looker
    5 x 2.65 x 5mm
    100mA
    -
    980nm
    850nm
    850 → 980 nm
    onsemi
    -
    -
    -
    1
    1100µA
    100nA
    -
    NPN
    2
    Surface Mount
    -
    1.7 x 0.8 x 0.6mm
    -
    -
    630nm
    -
    Maximum of 630 nm
    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
    ams OSRAM
    Infrared
    7µs
    7µs
    1
    1000µA
    50nA
    120 °
    NPN
    2
    Surface Mount
    PLCC
    3.4 x 3 x 2mm
    15mA
    -
    1120nm
    750nm
    750 → 1120 nm
    Optek
    Infrared
    25ns
    25ns
    1
    -
    -
    -
    -
    3
    Through Hole
    Side Looker
    4.45 x 2.34 x 5.72mm
    -
    -
    935nm
    -
    Maximum of 935 nm
    Wurth Elektronik
    Infrared, Visible Light
    -
    -
    1
    -
    100 (Collector Emitter)nA
    120 °
    NPN
    2
    Surface Mount
    3528
    3.5 x 2.8 x 1.9mm
    20mA
    -
    1100nm
    400nm
    400 → 1100 nm
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