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

5571 Products showing for Optocouplers & Photodetectors

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1 of 279
In Stock
Hamamatsu Photonics S1336-18BK Ultraviolet, Infrared Photodiode, Through Hole TO-18
  • RS Stock No. 482-450
  • Mfr. Part No. S1336-18BK
Subtotal (1 unit)
$54.67(exc. GST)
$54.67/unit
In Stock
GP2Y0D02YK0F Sharp Surface Reflective Optical Sensor, Digital Output
  • RS Stock No. 315-466
  • Mfr. Part No. GP2Y0D02YK0F
Subtotal (1 unit)
$13.16(exc. GST)
$13.16/unit
In Stock
Sharp Through Hole Reflective Optical Sensor
  • RS Stock No. 666-6570P
  • Mfr. Part No. GP2Y0D21YK0F
Subtotal 1 unit (supplied in a box)
$10.86(exc. GST)
$10.86/unit
In Stock
Hamamatsu Photonics S1223-01 Visible Light, Infrared, Ultraviolet Photodiode, 60 °, Through Hole TO-5
  • RS Stock No. 415-5722
  • Mfr. Part No. S1223-01
Subtotal (1 unit)
$32.38(exc. GST)
$32.38/unit
In Stock
GP2Y0A21YK0F Sharp Reflective Optical Sensor
  • RS Stock No. 666-6564
  • Mfr. Part No. GP2Y0A21YK0F
Subtotal (1 unit)
$22.22(exc. GST)
$22.22/unit
In Stock
Sharp Reflective Optical Sensor
  • RS Stock No. 666-6564P
  • Mfr. Part No. GP2Y0A21YK0F
Subtotal 1 unit (supplied in a box)
$22.22(exc. GST)
$22.22/unit
In Stock
Sharp Reflective Optical Sensor
  • RS Stock No. 666-6568P
  • Mfr. Part No. GP2Y0A41SK0F
Subtotal 1 unit (supplied in a tray)
$18.98(exc. GST)
$18.98/unit
In Stock
EE-SX671P Omron Panel, Pipe Slotted Optical Switch, Transistor Output
  • RS Stock No. 821-0123
  • Mfr. Part No. EE-SX671P
Subtotal (1 unit)
$55.17(exc. GST)
$55.17/unit
In Stock
ams OSRAM BPX 61 Visible Light, Infrared Photodiode, 55 °, Through Hole TO-5
  • RS Stock No. 654-7785
  • Mfr. Part No. BPX 61
Subtotal (1 unit)
$21.02(exc. GST)
$21.02/unit
In Stock
GP2Y0A02YK0F Sharp Screw Reflective Optical Sensor
  • RS Stock No. 315-450
  • Mfr. Part No. GP2Y0A02YK0F
Subtotal (1 unit)
$25.66(exc. GST)
$25.66/unit
In Stock
Optek OPB70 Wire, PCB Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 455-0947
  • Mfr. Part No. OPB705
Subtotal (1 unit)
$6.03(exc. GST)
$6.03/unit
In Stock
EE-SX1041 Aratas Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 219-2533
  • Mfr. Part No. EE-SX1041
Subtotal (1 unit)
$3.14(exc. GST)
$3.14/unit
In Stock
Optek Screw Slotted Optical Switch, Transistor Output
  • RS Stock No. 880-1983
  • Mfr. Part No. OPB900W55Z
Subtotal (1 unit)
$11.93(exc. GST)
$11.93/unit
In Stock
QRE1113GR onsemi Surface Reflective Optical Sensor, Phototransistor Output, Surface Mount package
  • RS Stock No. 761-3984
  • Mfr. Part No. QRE1113GR
Subtotal (1 pack of 5 units)
$10.00(exc. GST)
$2.00/unit
In Stock
Hamamatsu Photonics S5821-02 Infrared Photodiode, 60 °, Through Hole TO-18
  • RS Stock No. 303-366
  • Mfr. Part No. S5821-02
Subtotal (1 tube of 5 units)
$71.07(exc. GST)
$14.214/unit
In Stock
Vishay BPW34 Visible Light, Infrared Photodiode, 65 °, Through Hole Flat Top
  • RS Stock No. 699-7616
  • Mfr. Part No. BPW34
Subtotal (1 pack of 5 units)
$11.88(exc. GST)
$2.376/unit
In Stock
ams OSRAM SFH 2401 Infrared, Visible Light Photodiode, 60 °, Surface DIL
  • RS Stock No. 224-9981
  • Mfr. Part No. SFH 2401
Subtotal (1 pack of 10 units)
$15.78(exc. GST)
$1.578/unit
In Stock
Toshiba TLP172AM(TPR,E(O Photocoupler, Surface, 4-Pin SO
  • RS Stock No. 236-3602
  • Mfr. Part No. TLP172AM(TPR,E(O
Subtotal (1 pack of 10 units)
$43.84(exc. GST)
$4.384/unit
In Stock
OPB720A-06Z Optek OPB720 Screw Reflective Optical Sensor, Open Collector Output 1-Channel
  • RS Stock No. 414-175
  • Mfr. Part No. OPB720A-06Z
Subtotal (1 unit)
$32.64(exc. GST)
$32.64/unit
In Stock
Hamamatsu Photonics S5972 Visible Light, Infrared Photodiode, 60 °, Through Hole TO-18
  • RS Stock No. 124-7159
  • Mfr. Part No. S5972
Subtotal (1 unit)
$17.89(exc. GST)
$17.89/unit
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