Optocouplers, Photodetectors & Isolators | RS
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    Optocouplers & Photodetectors

    We offer an extensive range of optocouplers (opto-isolators), photodetectors AND photointerrupter modules. Our range features leading brands such as Avago Technologies, Fairchild & Vishay.

    What are optocouplers?

    An Optocoupler, also known as a photocoupler or optical isolator, is an electronic component that interconnects two electrical circuits using an LED and a phototransistor, housed in the same opaque package. There are also other types of source-sensor combinations which include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. These different pairings can have various effects as a result of the materials used, such as impact on speed. Optocouplers are used mainly to couple isolated circuits and have a range of uses in both domestic and industrial applications - often used on building sites.

    We stock:

    • Photodiodes: also known as a diode, is a semiconductor device that converts light into an electrical current, generated when photons are absorbed. Other types of optocouplers include photodarlingtons and TRIACs.
    • Reflective optical sensors: normally used in automotive production, but can also be found in manufacturing processes to ensure they run smoothly. They use a system of mirrors and light beams that sense when they are interrupted to report and show faults.
    • Digital isolators: used to ensure accuracy in circuits by eliminating ground loop errors to improve performance. They can also help develop component safety as isolation devices allowing circuits to coexist and communicate without interruption or signal interference.
    Digital Isolator ICs
    Digital Isolator ICs
    IR Receivers
    IR Receivers
    IR Transceivers
    IR Transceivers
    Optocouplers
    Optocouplers
    Photodiodes
    Photodiodes
    Photomultipliers
    Photomultipliers
    Phototransistors
    Phototransistors
    Reflective Optical Sensors
    Reflective Optical Sensors
    Slotted Optical Switches
    Slotted Optical Switches

    5569 Products showing for Optocouplers & Photodetectors

    1 / 279
    Product Image
    Broadcom, ACPL-P456-500E DC Input IGBT Gate Drive Output Optocoupler, Surface Mount, 6-Pin SO
    RS Stock No.:
    230-5317
    Mfr. Part No.:
    ACPL-P456-500E
    MYR13.955
    Each (In a Pack of 2)
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    Intelligent LED Solutions, ILH-G11193-02R-SC201-WIR200. IR InGaAs Photodiode, Surface Mount
    RS Stock No.:
    209-7967
    Mfr. Part No.:
    ILH-G11193-02R-SC201-WIR200.
    MYR364.05
    Each
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    Hamamatsu, G12180-003A IR InGaAs Photodiode, Through Hole TO-18
    RS Stock No.:
    261-6235
    Mfr. Part No.:
    G12180-003A
    MYR234.09
    Each
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    Isocom, H11G2 DC Input Darlington Output Optocoupler, Through Hole, 6-Pin DIP
    RS Stock No.:
    111-172
    Mfr. Part No.:
    H11G2
    MYR5.73
    Each
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    Broadcom, HCPL-2630-000E DC Input Transistor Output Dual Optocoupler, Through Hole, 8-Pin DIP
    RS Stock No.:
    922-5804
    Mfr. Part No.:
    HCPL-2630-000E
    MYR12.854
    Each (In a Tube of 50)
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    QRE1113GR onsemi, SMT Reflective Optical Sensor, Phototransistor Output
    RS Stock No.:
    761-3984
    Mfr. Part No.:
    QRE1113GR
    MYR2.85
    Each (In a Pack of 5)
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    Toshiba, TLP291-4(GB-TP,E(T DC Input Phototransistor Output Quad Optocoupler, Surface Mount, 16-Pin SOIC
    RS Stock No.:
    885-0979
    Mfr. Part No.:
    TLP291-4(GB-TP,E(T
    MYR5.102
    Each (In a Pack of 10)
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    Vishay, SFH6186-3 Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD
    RS Stock No.:
    180-7776
    Mfr. Part No.:
    SFH6186-3
    MYR2.895
    Each (In a Pack of 20)
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    Centronic, OSD15-E Visible Light Si Photodiode, Through Hole TO-5
    RS Stock No.:
    846-705
    Mfr. Part No.:
    OSD15-E
    MYR217.88
    Each
    Product Image
    Broadcom, HCPL-2731-000E DC Input Darlington Output Dual Optocoupler, Through Hole, 8-Pin PDIP
    RS Stock No.:
    547-4002
    Mfr. Part No.:
    HCPL-2731-000E
    MYR13.80
    Each
    Product Image
    Broadcom, HCPL-063L-000E DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
    RS Stock No.:
    547-3649
    Mfr. Part No.:
    HCPL-063L-000E
    MYR23.04
    Each
    Product Image
    EE-SX671A Omron, Slotted Optical Switch
    RS Stock No.:
    818-1485
    Mfr. Part No.:
    EE-SX671A
    MYR110.29
    Each
    Product Image
    onsemi, QSD2030F Si Photodiode, Through Hole 5mm package
    RS Stock No.:
    805-0539
    Mfr. Part No.:
    QSD2030F
    MYR2.349
    Each (In a Pack of 25)
    Product Image
    onsemi, MOC3083M DC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
    RS Stock No.:
    739-0256
    Mfr. Part No.:
    MOC3083M
    MYR4.436
    Each (In a Pack of 5)
    Product Image
    Broadcom, HCPL-7860-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
    RS Stock No.:
    178-3149
    Mfr. Part No.:
    HCPL-7860-000E
    MYR21.394
    Each (In a Tube of 50)
    Product Image
    Vishay, 4N25 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
    RS Stock No.:
    919-0054
    Mfr. Part No.:
    4N25
    MYR1.96
    Each (In a Tube of 50)
    Product Image
    Isocom, 4N35 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
    RS Stock No.:
    597-302
    Mfr. Part No.:
    4N35
    MYR3.49
    Each
    Product Image
    onsemi, HCPL3700VM CMOS Output Optocoupler, Through Hole, 8-Pin DIP
    RS Stock No.:
    185-8626
    Mfr. Part No.:
    HCPL3700VM
    MYR20.76
    Each (In a Pack of 2)
    Product Image
    Hamamatsu, S1223-01 Full Spectrum Si Photodiode, Through Hole TO-5
    RS Stock No.:
    415-5722
    Mfr. Part No.:
    S1223-01
    MYR90.62
    Each
    Product Image
    Lite-On, MOC3052 Triac Output Optocoupler, Through Hole, 6-Pin PDIP
    RS Stock No.:
    691-2293
    Mfr. Part No.:
    MOC3052
    MYR3.446
    Each (In a Pack of 5)
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