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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.

    5597 Products showing for Optocouplers & Photodetectors

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    • RS Stock No. 185-8023
    • Mfr. Part No. MOC3072SVM
    Each (In a Tube of 1000)
    HK$5.554
    • RS Stock No. 453-7499
    • Mfr. Part No. PS2501-1-A
    Each
    HK$4.80
    • RS Stock No. 124-7161
    • Mfr. Part No. S1223
    Each
    HK$80.62
    • RS Stock No. 161-1035
    • Mfr. Part No. TLP521-4GB
    Each (In a Tube of 25)
    HK$11.976
    • RS Stock No. 352-5495
    • Mfr. Part No. AQY414EH
    Each
    HK$24.90
    • RS Stock No. 818-8350
    • Mfr. Part No. HCPL-3700-300E
    Each (In a Pack of 2)
    HK$36.35
    • RS Stock No. 815-1250
    • Mfr. Part No. BPW77NA
    Each (In a Pack of 5)
    HK$24.474
    • RS Stock No. 230-8350
    • Mfr. Part No. TCMT4606
    Each (In a Pack of 5)
    HK$17.448
    • RS Stock No. 699-7616
    • Mfr. Part No. BPW34
    Each (In a Pack of 5)
    HK$8.72
    • RS Stock No. 699-7616P
    • Mfr. Part No. BPW34
    Each (Supplied in a Bag)
    HK$8.72
    • RS Stock No. 817-218
    • Mfr. Part No. ISD203
    Each
    HK$7.00
    • RS Stock No. 144-5264
    • Mfr. Part No. TLP291(GB-TP,SE(T
    Each (In a Pack of 50)
    HK$1.777
    • RS Stock No. 161-1147
    • Mfr. Part No. 6N138
    Each (In a Pack of 10)
    HK$5.42
    • RS Stock No. 880-2037
    • Mfr. Part No. OPB990T51Z
    Each
    HK$52.10
    • RS Stock No. 740-5058
    • Mfr. Part No. NJL5901AR-1-TE1
    Each (In a Pack of 5)
    HK$12.766
    • RS Stock No. 880-1999
    • Mfr. Part No. OPB100Z
    Each
    HK$70.80
    • RS Stock No. 693-6775
    • Mfr. Part No. ACPL-217-500E
    Each (In a Pack of 5)
    HK$3.82
    • RS Stock No. 830-3445
    • Mfr. Part No. PVI1050NS-TPBF
    Each (In a Pack of 2)
    HK$77.45
    • RS Stock No. 183-7181
    • Mfr. Part No. PIN-10DP
    Each
    HK$1,761.88
    • RS Stock No. 247-240P
    • Mfr. Part No. BPW 34
    Each (Supplied on a Reel)
    HK$8.158
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