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

5494 Products showing for Optocouplers & Photodetectors

1 of 275
Vishay TSOP4138, 38kHz IR Receiver, 950nm, 45m Range, Through Hole, 6 x 5.6 x 6.95mm
  • RS Stock No. 708-5109
  • Mfr. Part No. TSOP4138
Each (In a Pack of 5)
Kr. 9,13(exc. VAT)
OPB100Z Optek, Infrared Transceiver, Snap-In
  • RS Stock No. 880-1999
  • Mfr. Part No. OPB100Z
Each
Kr. 91,75(exc. VAT)
onsemi, MOC3041M DC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 739-0252
  • Mfr. Part No. MOC3041M
Each (In a Pack of 5)
Kr. 10,48(exc. VAT)
Broadcom, HCPL-4504-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 922-5772
  • Mfr. Part No. HCPL-4504-000E
Each (In a Tube of 50)
Kr. 16,261(exc. VAT)
onsemi, MOC3041SM AC Input Triac Output Optocoupler, Surface Mount, 6-Pin DIP
  • RS Stock No. 806-6023
  • Mfr. Part No. MOC3041SM
Each (In a Pack of 10)
Kr. 7,528(exc. VAT)
Vishay, SFH617A-2 DC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 708-5483
  • Mfr. Part No. SFH617A-2
Each (In a Pack of 10)
Kr. 7,299(exc. VAT)
onsemi, CNY173TVM DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 761-3603
  • Mfr. Part No. CNY173TVM
Each (In a Pack of 10)
Kr. 2,919(exc. VAT)
Vishay TSOP38238, 38kHz IR Receiver, 950nm, 45m Range, 2.5 V - 5.5V, Through Hole, 5 x 4.8 x 6.95mm
  • RS Stock No. 708-5086
  • Mfr. Part No. TSOP38238
Each (In a Pack of 5)
Kr. 7,87(exc. VAT)
EE-SY1201 Omron, Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 237-9896
  • Mfr. Part No. EE-SY1201
Each
Kr. 45,52(exc. VAT)
Hamamatsu, S5990-01 Visible Light Si Position Sensing Detector (PSD), Surface Mount Ceramic
  • RS Stock No. 261-6272
  • Mfr. Part No. S5990-01
Each
Kr. 377,06(exc. VAT)
Toshiba, TLP291-4(E(T DC Input Phototransistor Output Quad Optocoupler, Surface Mount, 16-Pin SOIC
  • RS Stock No. 885-0976
  • Mfr. Part No. TLP291-4(E(T
Each (In a Pack of 10)
Kr. 8,146(exc. VAT)
Broadcom, HCPL-0600-000E DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 922-5778
  • Mfr. Part No. HCPL-0600-000E
Each (In a Tube of 100)
Kr. 12,556(exc. VAT)
Broadcom, AFBR-S4N44P164M Ultraviolet, Visible Light 16-Element Photomultiplier, 420nm
  • RS Stock No. 261-9700
  • Mfr. Part No. AFBR-S4N44P164M
Each
Kr. 1 884,13(exc. VAT)
Isocom, ISQ203 DC Input Transistor Output Quad Optocoupler, Through Hole, 16-Pin PDIP
  • RS Stock No. 817-224
  • Mfr. Part No. ISQ203
Each
Kr. 28,37(exc. VAT)
ams OSRAM, SFH 203 P IR + Visible Light Si Photodiode, Through Hole 5mm package
  • RS Stock No. 654-8671
  • Mfr. Part No. SFH 203 P
Each (In a Pack of 5)
Kr. 10,982(exc. VAT)
Hamamatsu, G8931-04 IR InGaAs Photodiode, Through Hole TO-18
  • RS Stock No. 261-6242
  • Mfr. Part No. G8931-04
Each
Kr. 5 283,79(exc. VAT)
OSI Optoelectronics, UV-100L Si Photodiode, Through Hole Low Profile
  • RS Stock No. 176-9786
  • Mfr. Part No. UV-100L
Each
Kr. 2 025,80(exc. VAT)
Vishay TSOP4138, 38kHz IR Receiver, 950nm, 45m Range, Through Hole, 6 x 5.6 x 6.95mm
  • RS Stock No. 708-5109P
  • Mfr. Part No. TSOP4138
Each (Supplied in a Tube)
Kr. 9,13(exc. VAT)
Vishay, TCLD1000 DC Input Darlington Output Optocoupler, Surface Mount, 4-Pin SOP
  • RS Stock No. 710-5032
  • Mfr. Part No. TCLD1000
Each (In a Pack of 10)
Kr. 4,782(exc. VAT)
QRD1114 onsemi, IR Phototransistor, Through Hole 4-Pin Custom 4L package
  • RS Stock No. 184-1403P
  • Mfr. Part No. QRD1114
Each (Supplied in a Bag)
Kr. 10,925(exc. VAT)
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