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

5435 Products showing for Optocouplers & Photodetectors

5 of 272
Vishay, VOD223T DC Input Darlington Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 699-8486
  • Mfr. Part No. VOD223T
Each (In a Pack of 5)
SGD1.928(exc. GST)
Isocom, TLP521-2GR Phototransistor Output Optocoupler, 8-Pin
  • RS Stock No. 171-8032
  • Mfr. Part No. TLP521-2GR
Each (In a Tube of 50)
SGD0.729(exc. GST)
TCST2103 Vishay, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 708-5553
  • Mfr. Part No. TCST2103
Each (In a Pack of 5)
SGD1.548(exc. GST)
Toshiba, TLP250HF(F) Photo IC Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 885-1288
  • Mfr. Part No. TLP250HF(F)
Each (In a Pack of 5)
SGD2.546(exc. GST)
Broadcom, HCPL-4661-020E DC Input Open Collector, Transistor Output Quad Optocoupler, Through Hole, 8-Pin DIP-8
  • RS Stock No. 334-852P
  • Mfr. Part No. HCPL-4661-020E
Each (Supplied in a Tube)
SGD10.99(exc. GST)
Broadcom, HCPL-063N-000E DC Input Transistor Output Dual Optocoupler, Through Hole, 8-Pin SOIC
  • RS Stock No. 547-3655
  • Mfr. Part No. HCPL-063N-000E
Each
SGD12.43(exc. GST)
Broadcom, ACPL-W70L-000E DC Input Logic Gate Output Optocoupler, Surface Mount, 6-Pin SO
  • RS Stock No. 693-6040P
  • Mfr. Part No. ACPL-W70L-000E
Each (Supplied in a Tube)
SGD5.56(exc. GST)
OSI Optoelectronics, PIN-UDT-455 IR Photodetector Amplifier Unit, Through Hole TO-5
  • RS Stock No. 177-5572
  • Mfr. Part No. PIN-UDT-455
Each (In a Tray of 5)
SGD92.09(exc. GST)
Broadcom, HCPL-3120-300E DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 450-812P
  • Mfr. Part No. HCPL-3120-300E
Each (Supplied in a Tube)
SGD5.055(exc. GST)
Vishay TSOP2238, 38kHz IR Receiver, 950nm, 45m Range, Through Hole, 6 x 5.6 x 6.95mm
  • RS Stock No. 145-1635
  • Mfr. Part No. TSOP2238
Each (In a Tube of 90)
SGD0.755(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)
ams OSRAM, BPX 65 Full Spectrum Si Photodiode, Through Hole TO-18
  • RS Stock No. 497-5677
  • Mfr. Part No. BPX 65
Each
SGD8.24(exc. GST)
ams OSRAM, SFH 206 K IR + Visible Light Si Photodiode, Through Hole 5mm package
  • RS Stock No. 654-8659
  • Mfr. Part No. SFH 206 K
Each (In a Pack of 5)
SGD1.606(exc. GST)
Lite-On, LTV-816 DC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 168-9659
  • Mfr. Part No. LTV-816
Each (In a Tube of 100)
SGD0.204(exc. GST)
EE-SX672A Omron, Slotted Optical Switch
  • RS Stock No. 818-1494
  • Mfr. Part No. EE-SX672A
Each
SGD50.12(exc. GST)
Hamamatsu, S4584-06 IR Photodiode, Surface Mount SMD
  • RS Stock No. 124-7163
  • Mfr. Part No. S4584-06
Each
SGD8.05(exc. GST)
OPB916BZ Optek, Screw Mount Slotted Optical Switch, Buffer, Open-Collector with 10K Pull-Up Resistor Output
  • RS Stock No. 455-0896
  • Mfr. Part No. OPB916BZ
Each
SGD9.40(exc. GST)
Broadcom, HCPL-3150-300E DC Input IGBT Gate Drive Output Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 178-3183
  • Mfr. Part No. HCPL-3150-300E
Each (In a Tube of 50)
SGD2.565(exc. GST)
EE-SX1025 Omron, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 205-0594
  • Mfr. Part No. EE-SX1025
Each (In a Pack of 5)
SGD3.042(exc. GST)
Fairchild, H11L1M DC Input Logic Gate Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 671-1393
  • Mfr. Part No. H11L1M
Each (In a Pack of 5)
SGD1.26(exc. GST)
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