Optocouplers, Arduino Optocoupler Circuits | RS
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    Optocouplers

    An optocoupler IC, also known as an opto-isolator or photocoupler, is a semiconductor device which is used to couple isolated circuits. Within an optocoupler you will find a light emitter and a light sensor. Optocouplers usually come in a semiconductor package, such as SOIC or PDIP.

    How does an optocoupler IC work?

    Optocouplers work by transferring energy from one circuit to another circuit via an optical transmission path, while providing electrical isolation

    The light emitter device can come in the form of an LED (light emitting diode) that produces IR or visible light, or a laser diode. The light emitter receives the input and converts it into a light signal. The light detector senses the light emitter and converts it back into an electrical signal.

    Optocouplers are often used in high-voltage applications to block the high voltages and variations in voltage. This ensures that, if there is a spike in one part of a circuit, it will not affect other parts. Therefore they are ideal for applications which may experience variations in voltage.

    Types of Optocoupler:

    • Resistive

    • Photodiode

    • Phototransistor

    • Bidirectional

    Output Types

    • CMOS

    • Darlington

    • IGBT Gate Drive

    • Logic Gate

    • MOSFET

    • Photodarlington

    • Phototransistor

    • Single Transistor

    • TRIAC

    3771 產品顯示為 Optocouplers

    Lite-On
    -
    Through Hole
    Transistor
    1.4V
    4
    16
    PDIP
    AC
    4µs
    50 mA
    5 kVrms
    300%
    20%
    3µs
    -
    LTV
    Vishay
    -
    Through Hole
    Phototransistor
    1.65V
    1
    4
    DIP
    -
    2µs
    60 mA
    5.3 kVrms
    80%
    40%
    11µs
    -
    SFH
    Vishay
    -
    Through Hole
    Transistor
    1.9V
    1
    8
    DIP
    DC
    -
    25 mA
    5300 Vrms
    35%
    -
    -
    -
    6N136
    onsemi
    Logic Output
    Surface Mount
    Darlington
    1.3V
    1
    8
    SOIC
    -
    8µs
    60 mA
    2500 Vrms ac
    1000%
    500%
    45µs
    -
    MOCD
    Vishay
    -
    Surface Mount
    -
    1.45V
    -
    6
    SMD
    -
    -
    -
    -
    -
    -
    -
    -
    LH
    Toshiba
    -
    Through Hole
    MOSFET
    1.48V
    2
    6
    DIP
    DC
    -
    30 mA
    2500 V ac
    -
    -
    -
    -
    TLP
    Vishay
    -
    Surface Mount
    Phototriac
    1.35V
    -
    6
    SMD
    -
    -
    -
    -
    -
    -
    -
    -
    IL4208
    Vishay
    -
    Through Hole
    Transistor
    1.6V
    4
    16
    PDIP
    DC
    3µs
    60 mA
    5300 V ac
    600%
    50%
    4.7µs
    -
    CNY
    Vishay
    -
    Surface Mount
    NMOS
    1.7V
    1
    8
    DIP
    AC/DC
    -
    -
    -
    -
    -
    -
    -
    6N137
    Vishay
    -
    Surface Mount
    NMOS
    1.7V
    1
    8
    DIP
    AC/DC
    -
    -
    -
    -
    -
    -
    -
    6N137
    Broadcom
    -
    Surface Mount
    Transistor
    1.4V
    1
    4
    SOIC
    AC
    2µs
    50 mA
    3000 V ac
    400%
    20%
    3µs
    -
    ACPL
    Isocom
    -
    Through Hole
    Schmitt Trigger
    1.5V
    1
    6
    DIP
    DC
    0.1µs
    60 mA
    5 kVrms
    -
    -
    0.1µs
    -
    H11L1
    Vishay
    -
    Surface Mount
    MOSFET
    1.45V
    1
    4
    SMD
    -
    -
    50 mA
    5.3 kVrms
    -
    -
    -
    -
    LH
    Vishay
    -
    Through Hole
    Transistor
    1.65V
    1
    6
    DIP
    DC
    3µs
    60 mA
    5 kVrms
    200%
    -
    14µs
    -
    CNY
    Toshiba
    -
    Surface Mount
    Diode
    1.65V
    1
    5
    SO
    -
    -
    -
    -
    -
    -
    -
    -
    TLP
    onsemi
    -
    Surface Mount
    Logic Gate
    1.5V
    1
    6
    MDIP
    DC
    0.1µs
    30 mA
    7500 V ac
    -
    -
    0.1µs
    -
    H11L
    Vishay
    -
    Through Hole
    Phototransistor
    1.5V
    1
    6
    PDIP
    DC
    -
    50 mA
    5 kVrms
    50%
    40%
    -
    -
    4N36
    Toshiba
    -
    Surface Mount
    MOSFET
    1.4V
    -
    4
    -
    -
    -
    -
    -
    -
    -
    -
    -
    TLP
    Toshiba
    -
    Through Hole
    Transistor
    1.3V
    4
    16
    PDIP
    AC
    2µs
    50 mA
    5 kVrms
    600%
    50%
    3µs
    -
    TLP
    Vishay
    -
    Surface Mount
    Phototransistor
    1.55V
    2
    8
    SOIC
    DC
    5µs
    30 mA
    4000 V ac
    120%
    100%
    4µs
    -
    VOD
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