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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

    5975 Products showing for Optocouplers & Photodetectors

    7 of 299
    Vishay, CNY17-3X001 DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin PDIP
    • RS Stock No. 708-5308
    • Mfr. Part No. CNY17-3X001
    Each (In a Pack of 10)
    €0.484
    Vishay, VOT8125AD Phototriac Output Optocoupler, Through Hole, 5-Pin DIP
    • RS Stock No. 244-4893
    • Mfr. Part No. VOT8125AD
    Each
    €1.20
    Isocom, H11AA1X AC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
    • RS Stock No. 453-0965
    • Mfr. Part No. H11AA1X
    Each (In a Pack of 10)
    €0.595
    Vishay TSOP4838, 38kHz IR Receiver, 950nm, 45m Range, 2.5 V - 5.5V, Through Hole, 6 x 5.6 x 6.95mm
    • RS Stock No. 708-5115P
    • Mfr. Part No. TSOP4838
    Each (Supplied in a Tube)
    €0.776
    OPB705 Optek, Reflective Optical Sensor, Phototransistor Output
    • RS Stock No. 170-0778
    • Mfr. Part No. OPB705
    Each (In a Bag of 25)
    €2.819
    TEPT5700 Vishay, Visible Light Phototransistor
    • RS Stock No. 257-6878
    • Mfr. Part No. TEPT5700
    Each
    €0.43
    Lite-On, LTV-816 DC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
    • RS Stock No. 168-9659
    • Mfr. Part No. LTV-816
    Each (In a Tube of 100)
    €0.137
    Vishay, BPV23F IR Si Photodiode, Through Hole Side-looker Package
    • RS Stock No. 699-7613
    • Mfr. Part No. BPV23F
    Each (In a Pack of 5)
    €0.668
    Wurth Elektronik, 1540051EC3590 IR Si Photodiode, Through Hole 5
    • RS Stock No. 184-7295P
    • Mfr. Part No. 1540051EC3590
    Each (Supplied in a Bag)
    €0.463
    Wurth Elektronik, 1540051EA3590 IR Si Photodiode, Through Hole 5
    • RS Stock No. 184-7283
    • Mfr. Part No. 1540051EA3590
    Each (In a Pack of 25)
    €0.463
    Vishay, BPW82 IR PIN Photodiode, Through Hole Leaded
    • RS Stock No. 244-4683P
    • Mfr. Part No. BPW82
    Each (Supplied in a Bag)
    €1.07
    TCST2103 Vishay, Through Hole Slotted Optical Switch, Phototransistor Output
    • RS Stock No. 708-5553
    • Mfr. Part No. TCST2103
    Each (In a Pack of 5)
    €1.144
    Wurth Elektronik, 141815143000 Photodarlington Output Optocoupler, 4-Pin DIP
    • RS Stock No. 240-7001
    • Mfr. Part No. 141815143000
    Each (On a Reel of 1500)
    €0.39
    ams OSRAM, SFH 213 FA IR Si Photodiode, Through Hole 5mm package
    • RS Stock No. 654-8895
    • Mfr. Part No. SFH 213 FA
    Each (In a Pack of 5)
    €0.692
    SFH 300-3/4 ams OSRAM, 50 ° IR + Visible Light Phototransistor, Through Hole 2-Pin 5mm (T-1 3/4) package
    • RS Stock No. 654-8031P
    • Mfr. Part No. SFH 300-3/4
    Each (Supplied as a Tape)
    €0.40
    Sharp, PC357NJ0000F Transistor Output Optocoupler
    • RS Stock No. 826-4684P
    • Mfr. Part No. PC357NJ0000F
    Each (Supplied on a Reel)
    €0.484
    Isocom, IS452 DC Input Darlington Output Optocoupler, Surface Mount, 4-Pin PDIP
    • RS Stock No. 453-0959
    • Mfr. Part No. IS452
    Each (In a Pack of 10)
    €0.725
    TCST1230 Vishay, Through Hole Slotted Optical Switch, Phototransistor Output
    • RS Stock No. 708-5540
    • Mfr. Part No. TCST1230
    Each (In a Pack of 5)
    €0.784
    Lite-On, LTV-3150 DC Input IGBT, MOSFET Output Optocoupler, Surface Mount, 8-Pin DIP
    • RS Stock No. 168-9504
    • Mfr. Part No. LTV-3150
    Each (In a Tube of 50)
    €0.764
    onsemi, FOD3180 DC Input MOSFET Output Optocoupler, Through Hole, 8-Pin DIP
    • RS Stock No. 671-1387
    • Mfr. Part No. FOD3180
    Each
    €2.34
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