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

7 of 272
Vishay, VOD223T DC Input Darlington Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 699-8486P
  • Mfr. Part No. VOD223T
Each (Supplied on a Reel)
SGD1.928(exc. GST)
SFH 3310 ams OSRAM, 150 ° Full Spectrum Phototransistor, Through Hole 2-Pin T-1 package
  • RS Stock No. 912-8504
  • Mfr. Part No. SFH 3310
Each (In a Bag of 2000)
SGD0.535(exc. GST)
onsemi, MOC3020M DC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 761-3388
  • Mfr. Part No. MOC3020M
Each (In a Pack of 10)
SGD0.529(exc. GST)
Vishay, SFH620AGB Phototransistor Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 244-4736
  • Mfr. Part No. SFH620AGB
Each
SGD1.16(exc. GST)
Vishay, TEFD4300 IR Si Photodiode, Through Hole 3mm package
  • RS Stock No. 773-0418
  • Mfr. Part No. TEFD4300
Each (In a Bag of 10)
SGD0.645(exc. GST)
Broadcom, HCPL-314J-000E DC Input Transistor Output Dual Optocoupler, Surface Mount, 16-Pin SOIC
  • RS Stock No. 496-5591P
  • Mfr. Part No. HCPL-314J-000E
Each (Supplied in a Tube)
SGD7.36(exc. GST)
SFH 3310 ams OSRAM, 150 ° Full Spectrum Phototransistor, Through Hole 2-Pin 3mm (T-1) package
  • RS Stock No. 654-7808
  • Mfr. Part No. SFH 3310
Each (In a Pack of 5)
SGD1.444(exc. GST)
Vishay, SFH6156-2T DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SMD
  • RS Stock No. 284-1190
  • Mfr. Part No. SFH6156-2T
Each
SGD0.66(exc. GST)
Vishay, TCMT1107 DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 699-8341
  • Mfr. Part No. TCMT1107
Each (In a Pack of 10)
SGD0.525(exc. GST)
Broadcom, HCPL-7721-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 922-5668
  • Mfr. Part No. HCPL-7721-000E
Each (In a Tube of 50)
SGD5.301(exc. GST)
Broadcom, ACPL-W343-000E AC/DC Input, Input IGBT Gate Drive, MOSFET Output Optocoupler, Surface Mount, 6-Pin SSOP
  • RS Stock No. 768-7890
  • Mfr. Part No. ACPL-W343-000E
Each (In a Pack of 2)
SGD4.355(exc. GST)
IXYS, CPC1301GR Optocoupler
  • RS Stock No. 135-7876
  • Mfr. Part No. CPC1301GR
Each (In a Tube of 100)
SGD1.733(exc. GST)
onsemi, FOD814A3SD AC/DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMT
  • RS Stock No. 184-4775P
  • Mfr. Part No. FOD814A3SD
Each (Supplied on a Reel)
SGD0.433(exc. GST)
Renesas, PS2915-1-F3-AX DC Input Phototransistor Output Photocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 234-7100
  • Mfr. Part No. PS2915-1-F3-AX
Each (On a Reel of 3500)
SGD1.601(exc. GST)
Toshiba, TLP785F(GR-LF7,F(C DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin DIP
  • RS Stock No. 168-7832
  • Mfr. Part No. TLP785F(GR-LF7,F(C
Each (In a Tube of 100)
SGD0.427(exc. GST)
Wurth Elektronik, 140816140110 DC Input Phototransistor Output Quad Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 210-8020
  • Mfr. Part No. 140816140110
Each (In a Tube of 100)
SGD0.366(exc. GST)
Isocom, MOC3041 AC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 161-1020
  • Mfr. Part No. MOC3041
Each (In a Tube of 65)
SGD0.86(exc. GST)
OSI Optoelectronics, PIN-5D IR Si Photodiode, Through Hole TO-5
  • RS Stock No. 183-7132
  • Mfr. Part No. PIN-5D
Each (In a Tray of 10)
SGD37.773(exc. GST)
Broadcom, HCPL-0302-500E IGBT, MOSFET Output Optocoupler, Surface Mount, 8-Pin SO
  • RS Stock No. 174-4184
  • Mfr. Part No. HCPL-0302-500E
Each (In a Pack of 5)
SGD3.154(exc. GST)
Lite-On, 4N35 DC Input Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 125-7563
  • Mfr. Part No. 4N35
Each (In a Tube of 65)
SGD0.282(exc. GST)
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