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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

    5697 Products showing for Optocouplers & Photodetectors

    1 of 285
    Broadcom, HCPL-4504-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
    • RS Stock No. 922-5772
    • Mfr. Part No. HCPL-4504-000E
    Each (In a Tube of 50)
    Kr. 15,787
    Vishay TSOP31436, 36kHz IR Receiver, 950nm ±45 °, 45m Range, 2.5 V - 5.5V, Through Hole, 10 x 5.8 x 12.5mm
    • RS Stock No. 145-1826
    • Mfr. Part No. TSOP31436
    Each (In a Tube of 50)
    Kr. 5,887
    Lite-On, LTV-356T DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
    • RS Stock No. 691-2079
    • Mfr. Part No. LTV-356T
    Each (In a Pack of 10)
    Kr. 2,255
    onsemi, MOC3021M DC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
    • RS Stock No. 739-0240
    • Mfr. Part No. MOC3021M
    Each (In a Pack of 5)
    Kr. 8,376
    GP2Y0A21YK0F Sharp, Reflective Optical Sensor
    • RS Stock No. 666-6564
    • Mfr. Part No. GP2Y0A21YK0F
    Each
    Kr. 122,10
    Broadcom, HCNW3120-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
    • RS Stock No. 450-751
    • Mfr. Part No. HCNW3120-000E
    Each
    Kr. 48,73
    Panasonic, AQV254 DC Input MOSFET Output Optocoupler, Through Hole, 6-Pin DIP
    • RS Stock No. 171-8667
    • Mfr. Part No. AQV254
    Each
    Kr. 68,41
    TEPT5700 Vishay, Visible Light Phototransistor
    • RS Stock No. 257-6878
    • Mfr. Part No. TEPT5700
    Each
    Kr. 4,92
    Vishay, BPW34 IR + Visible Light Si Photodiode, Through Hole
    • RS Stock No. 699-7616
    • Mfr. Part No. BPW34
    Each (In a Pack of 5)
    Kr. 13,866
    Vishay, ILD213T DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
    • RS Stock No. 710-4887
    • Mfr. Part No. ILD213T
    Each (In a Pack of 5)
    Kr. 13,088
    Vishay TSOP4138, 38kHz IR Receiver, 950nm, 45m Range, Through Hole, 6 x 5.6 x 6.95mm
    • RS Stock No. 708-5109P
    • Mfr. Part No. TSOP4138
    Each (Supplied in a Tube)
    Kr. 8,878
    OPB941W51Z Optek, Panel Mount Slotted Optical Switch, Transistor Output
    • RS Stock No. 908-7205
    • Mfr. Part No. OPB941W51Z
    Each
    Kr. 64,55
    Texas Instruments, OPT101P Full Spectrum Photodetector Amplifier Unit, Through Hole PDIP, SOP
    • RS Stock No. 197-7465
    • Mfr. Part No. OPT101P
    Each (In a Pack of 2)
    Kr. 77,165
    SFH 313 FA ams OSRAM, 20 ° IR Phototransistor, Through Hole 2-Pin 5mm (T-1 3/4) package
    • RS Stock No. 665-5397
    • Mfr. Part No. SFH 313 FA
    Each (In a Pack of 20)
    Kr. 5,133
    Vishay, 4N35 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
    • RS Stock No. 165-2468
    • Mfr. Part No. 4N35
    Each (In a Tube of 50)
    Kr. 4,393
    Lite-On, LTV-356T DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
    • RS Stock No. 173-2647
    • Mfr. Part No. LTV-356T
    Each (On a Reel of 3000)
    Kr. 1,102
    Toshiba, TLP719(F) Phototransistor Output Optocoupler, Surface Mount SDIP
    • RS Stock No. 415-229
    • Mfr. Part No. TLP719(F)
    Each (In a Pack of 5)
    Kr. 20,198
    Si8641BC-B-IS1 Skyworks Solutions Inc, 4-Channel Digital Isolator 150Mbps, 3.75 kV, 16-Pin SOIC
    • RS Stock No. 753-2431
    • Mfr. Part No. Si8641BC-B-IS1
    Each
    Kr. 43,24
    Centronic, OSD15-5T IR + Visible Light Si Photodiode, Through Hole TO-5
    • RS Stock No. 194-076
    • Mfr. Part No. OSD15-5T
    Each
    Kr. 215,53
    Vishay, IL250 Phototransistor Output Optocoupler, Through Hole, 6-Pin DIP
    • RS Stock No. 180-8672
    • Mfr. Part No. IL250
    Each (In a Pack of 10)
    Kr. 9,209
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