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

5245 Products showing for Optocouplers & Photodetectors

1 / 263
Panasonic, AQY414EHA DC Input MOSFET Output Optocoupler, Surface Mount, 4-Pin PDIP
  • RS Stock No. 373-1173
  • Mfr. Part No. AQY414EHA
Each
MYR15.62
Panasonic, APV1122A MOSFET Output Optocoupler, Surface Mount, 6-Pin
  • RS Stock No. 247-4141
  • Mfr. Part No. APV1122A
Each
MYR17.93
Panasonic, AQY272A DC Input MOSFET Output Optocoupler, Surface Mount, 4-Pin PDIP
  • RS Stock No. 373-1195
  • Mfr. Part No. AQY272A
Each
MYR52.44
Toshiba, TLP241A(TP1,F(O MOSFET Output Photocoupler, Surface Mount, 4-Pin
  • RS Stock No. 236-3616
  • Mfr. Part No. TLP241A(TP1,F(O
Each (In a Pack of 5)
MYR8.446
Toshiba, TLP2105(F) Photo IC Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 885-1180
  • Mfr. Part No. TLP2105(F)
Each (In a Pack of 5)
MYR16.148
Panasonic, AQY210EHA DC Input MOSFET Output Optocoupler, Surface Mount, 4-Pin SMT
  • RS Stock No. 373-1167
  • Mfr. Part No. AQY210EHA
Each
MYR11.42
Toshiba, TLP2168(F) Photo IC Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 885-1225
  • Mfr. Part No. TLP2168(F)
Each (In a Pack of 5)
MYR16.426
Panasonic, AQV253 DC Input MOSFET Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 171-8645
  • Mfr. Part No. AQV253
Each
MYR31.24
Panasonic, AQV254 DC Input MOSFET Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 171-8667
  • Mfr. Part No. AQV254
Each
MYR31.89
Lite-On, MOC3063S-TA1 Phototriac Output Optocoupler, Surface Mount, 6-Pin PDIP
  • RS Stock No. 691-2319
  • Mfr. Part No. MOC3063S-TA1
Each (In a Pack of 5)
MYR3.61
TEPT5700 Vishay, Visible Light Phototransistor
  • RS Stock No. 257-6878
  • Mfr. Part No. TEPT5700
Each
MYR2.07
Toshiba, TLP187(TPL,E(T Transistor Output Photocoupler, Surface Mount, 4-Pin SO
  • RS Stock No. 236-3609
  • Mfr. Part No. TLP187(TPL,E(T
Each (In a Pack of 25)
MYR2.613
Lite-On, 4N25S-TA1 DC Input Transistor Output Optocoupler, Surface Mount, 6-Pin PDIP
  • RS Stock No. 127-8379
  • Mfr. Part No. 4N25S-TA1
Each (In a Pack of 50)
MYR1.349
Panasonic, AQY210EH DC Input MOSFET Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 352-5467
  • Mfr. Part No. AQY210EH
Each
MYR11.60
Toshiba, TLP2309(E(T DC Input IC Output Optocoupler, Surface Mount, 5-Pin SO
  • RS Stock No. 896-2675
  • Mfr. Part No. TLP2309(E(T
Each (In a Pack of 5)
MYR5.788
Toshiba, TLP185(GR DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SOIC
  • RS Stock No. 796-5229
  • Mfr. Part No. TLP185(GR
Each (In a Pack of 5)
MYR2.086
Toshiba, TLP351(D4-TP1,F) DC Input IC Output Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 756-3457
  • Mfr. Part No. TLP351(D4-TP1,F)
Each (In a Pack of 5)
MYR10.20
Toshiba, TLP2366(E(O DC Input Transistor Output Optocoupler, Surface Mount, 5-Pin SO
  • RS Stock No. 799-5289
  • Mfr. Part No. TLP2366(E(O
Each (In a Pack of 5)
MYR6.646
Toshiba, TLP185(GB DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SOIC
  • RS Stock No. 796-5210
  • Mfr. Part No. TLP185(GB
Each (In a Pack of 5)
MYR1.436
Panasonic, AQV252 DC Input MOSFET Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 171-8639
  • Mfr. Part No. AQV252
Each
MYR25.75
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