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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

    5976 Products showing for Optocouplers & Photodetectors

    1 of 299
    Vishay, ILD74 DC Input Transistor Output Dual Optocoupler, Through Hole, 8-Pin PDIP
    • RS Stock No. 708-5389
    • Mfr. Part No. ILD74
    Each (In a Pack of 5)
    Kr. 12,928
    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
    GP2Y0A21YK0F Sharp, Reflective Optical Sensor
    • RS Stock No. 666-6564
    • Mfr. Part No. GP2Y0A21YK0F
    Each
    Kr. 122,10
    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
    onsemi, FOD817A DC Input Phototransistor Output Optocoupler, Through Hole, 4-Pin DIP
    • RS Stock No. 761-4439
    • Mfr. Part No. FOD817A
    Each (In a Pack of 10)
    Kr. 3,111
    QSE113 onsemi, 25 ° IR Phototransistor, Through Hole 2-Pin Side Looker package
    • RS Stock No. 802-3317
    • Mfr. Part No. QSE113
    Each (In a Pack of 20)
    Kr. 6,072
    Broadcom, HCPL-7800-000E Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
    • RS Stock No. 547-4197
    • Mfr. Part No. HCPL-7800-000E
    Each
    Kr. 101,59
    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
    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
    1541201NEA400 Wurth Elektronik, WL-STCB 140 ° IR Phototransistor, Surface Mount 2-Pin 1206 package
    • RS Stock No. 184-7241
    • Mfr. Part No. 1541201NEA400
    Each (In a Pack of 25)
    Kr. 3,866
    Broadcom, HCPL-7840-000E Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
    • RS Stock No. 547-4153
    • Mfr. Part No. HCPL-7840-000E
    Each
    Kr. 85,80
    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
    onsemi, MOC3041SM AC Input Triac Output Optocoupler, Surface Mount, 6-Pin DIP
    • RS Stock No. 806-6023
    • Mfr. Part No. MOC3041SM
    Each (In a Pack of 10)
    Kr. 6,91
    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
    Lite-On, LTV-846 DC Input Transistor Output Quad Optocoupler, Through Hole, 16-Pin PDIP
    • RS Stock No. 168-9677
    • Mfr. Part No. LTV-846
    Each (In a Tube of 25)
    Kr. 6,00
    ams OSRAM, SFH 213 IR + Visible Light Si Photodiode, Through Hole 5mm package
    • RS Stock No. 654-8902
    • Mfr. Part No. SFH 213
    Each (In a Pack of 5)
    Kr. 9,80
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