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

5241 Products showing for Optocouplers & Photodetectors

1 / 263
Last RS stock
Isocom, CNY17-3X Transistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 168-8557
  • Mfr. Part No. CNY17-3X
Each (In a Tube of 65)
MYR1.535
In Stock
OPB620 Optek, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 204-3305
  • Mfr. Part No. OPB620
Each (In a Pack of 5)
MYR9.322
In Stock
OPB705 Optek, Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 170-0778
  • Mfr. Part No. OPB705
Each (In a Bag of 25)
MYR16.919
In Stock
OPB840L51 Optek, Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 880-2012
  • Mfr. Part No. OPB840L51
Each (In a Pack of 2)
MYR17.325
In Stock
Sharp, PC357N3J000F Transistor Output Optocoupler
  • RS Stock No. 826-4669
  • Mfr. Part No. PC357N3J000F
Each (In a Pack of 40)
MYR1.508
In Stock
OPB720B-06Z Optek, Reflective Optical Sensor, Open Collector Output
  • RS Stock No. 170-0732
  • Mfr. Part No. OPB720B-06Z
Each (In a Bag of 25)
MYR97.50
In Stock
OPB990T51Z Optek, Screw Mount Slotted Optical Switch
  • RS Stock No. 170-0964
  • Mfr. Part No. OPB990T51Z
Each (In a Bag of 25)
MYR33.113
Temporarily out of stock
GP2S60B Sharp, SMT Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 146-0747
  • Mfr. Part No. GP2S60B
Each (On a Reel of 2000)
MYR2.046
Temporarily out of stock
GP2S60 Sharp, SMT Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 170-2453
  • Mfr. Part No. GP2S60
Each (On a Reel of 2000)
MYR2.048
In Stock
OPB815L Optek, Screw Mount Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 170-0765
  • Mfr. Part No. OPB815L
Each (In a Bag of 25)
MYR15.839
In Stock
OPB841W55Z Optek, Screw Mount Slotted Optical Switch
  • RS Stock No. 170-0962
  • Mfr. Part No. OPB841W55Z
Each (In a Box of 25)
MYR31.26
In Stock
OPB705 Optek, Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 455-0947
  • Mfr. Part No. OPB705
Each
MYR17.05
In Stock
GP2A200LCS0F Sharp, SMT Reflective Optical Sensor, Photointerrupter Output
  • RS Stock No. 146-0782
  • Mfr. Part No. GP2A200LCS0F
Each (In a Pack of 2)
MYR23.445
In Stock
OPB702 Optek, Through Hole Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 455-0931
  • Mfr. Part No. OPB702
Each
MYR17.85
In Stock
Hamamatsu, S4810 Visible Light Si Photodiode, Through Hole Plastic
  • RS Stock No. 261-6270
  • Mfr. Part No. S4810
Each (In a Pack of 2)
MYR18.23
In Stock
Fairchild, H11L1M DC Input Logic Gate Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 178-4827
  • Mfr. Part No. H11L1M
Each (In a Bag of 1000)
MYR1.901
Temporarily out of stock
Isocom, MOC3023 AC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 161-1208
  • Mfr. Part No. MOC3023
Each (In a Pack of 20)
MYR3.229
In Stock
OPB830W11Z Optek, Screw Mount Slotted Optical Switch, Transistor Output
  • RS Stock No. 170-0955
  • Mfr. Part No. OPB830W11Z
Each (In a Bag of 100)
MYR37.181
In Stock
Optek, OPI120 DC Input Photodarlington, Photosensor, Phototransistor Output Optocoupler, Through Hole, 5-Pin
  • RS Stock No. 170-0942
  • Mfr. Part No. OPI120
Each (In a Bag of 25)
MYR54.564
In Stock
Isocom, MOC3020 AC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 161-1175
  • Mfr. Part No. MOC3020
Each (In a Pack of 20)
MYR3.85
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