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

5439 Products showing for Optocouplers & Photodetectors

3 of 272
BPW96B Vishay, ±20 ° IR Phototransistor, Through Hole 2-Pin 5mm (T-1 3/4) package
  • RS Stock No. 902-6654
  • Mfr. Part No. BPW96B
Each (In a Pack of 25)
SGD0.802(exc. GST)
1541201NBA300 Wurth Elektronik, WL-STCW 130 ° IR Phototransistor, Through Hole 2-Pin 1206 package
  • RS Stock No. 215-1788
  • Mfr. Part No. 1541201NBA300
Each (In a Pack of 50)
SGD0.445(exc. GST)
Broadcom, HCPL-0201-500E AC Input Open Collector Output Optocoupler, Surface Mount, 8-Pin Tubular
  • RS Stock No. 242-545
  • Mfr. Part No. HCPL-0201-500E
Each (On a Tape of 2)
SGD5.11(exc. GST)
Renesas, PS2502-1 DC Input Darlington Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 453-7556P
  • Mfr. Part No. PS2502-1
Each (Supplied in a Tube)
SGD2.22(exc. GST)
Toshiba, TLP291(GB DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SO
  • RS Stock No. 796-5279
  • Mfr. Part No. TLP291(GB
Each (In a Pack of 20)
SGD0.704(exc. GST)
Isocom, 4N35 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 597-302
  • Mfr. Part No. 4N35
Each
SGD0.48(exc. GST)
Renesas, PS2501L-4-A DC Input Transistor Output Quad Optocoupler, Surface Mount, 16-Pin PDIP
  • RS Stock No. 453-7540
  • Mfr. Part No. PS2501L-4-A
Each
SGD5.55(exc. GST)
OPB917BZ Optek, Through Hole Slotted Optical Switch, Buffer, Open-Collector with 10K Pull-Up Resistor Output
  • RS Stock No. 455-0919
  • Mfr. Part No. OPB917BZ
Each
SGD10.31(exc. GST)
Toshiba, TLP7820(A-LF4,E(O DC Input Optocoupler, Surface Mount, 8-Pin SO
  • RS Stock No. 206-9785
  • Mfr. Part No. TLP7820(A-LF4,E(O
Each (In a Pack of 2)
SGD17.095(exc. GST)
Hamamatsu, G8931-04 IR InGaAs Photodiode, Through Hole TO-18
  • RS Stock No. 261-6242
  • Mfr. Part No. G8931-04
Each
SGD709.62(exc. GST)
OSI Optoelectronics, UV-035EQ UV Si Photodiode, Through Hole TO-8
  • RS Stock No. 848-6281
  • Mfr. Part No. UV-035EQ
Each
SGD80.05(exc. GST)
Vishay, CNY17-3X007 Phototransistor Output Optocoupler, Through Hole, 6-Pin SMD
  • RS Stock No. 257-6828
  • Mfr. Part No. CNY17-3X007
Each (In a Pack of 10)
SGD0.541(exc. GST)
Broadcom, HCPL-0631-500E AC/DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SO
  • RS Stock No. 174-4129
  • Mfr. Part No. HCPL-0631-500E
Each (In a Pack of 2)
SGD7.025(exc. GST)
onsemi, MOC3041M DC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 178-4756
  • Mfr. Part No. MOC3041M
Each (In a Tube of 50)
SGD0.799(exc. GST)
Toshiba, TLP291(SE(T DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SOIC
  • RS Stock No. 796-5276
  • Mfr. Part No. TLP291(SE(T
Each (In a Pack of 20)
SGD0.695(exc. GST)
EE-SX1041 Omron, Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 219-2533
  • Mfr. Part No. EE-SX1041
Each
SGD2.02(exc. GST)
Vishay, CNY17F-3X001 Phototransistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 257-6831P
  • Mfr. Part No. CNY17F-3X001
Each (Supplied in a Tube)
SGD0.95(exc. GST)
Vishay, IL300-F DC Input Photodiode Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 919-0098
  • Mfr. Part No. IL300-F
Each (In a Tube of 50)
SGD11.233(exc. GST)
QSD123 onsemi, ±12 ° IR Phototransistor, Through Hole 2-Pin T-1 3/4 package
  • RS Stock No. 184-1423
  • Mfr. Part No. QSD123
Each (In a Pack of 25)
SGD0.739(exc. GST)
Lite-On, LTV-816S DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin PDIP
  • RS Stock No. 168-9661
  • Mfr. Part No. LTV-816S
Each (In a Tube of 100)
SGD0.206(exc. GST)
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