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

5479 Products showing for Optocouplers & Photodetectors

1 of 274
In Stock
Vishay, SFH620A-3 AC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 699-8253
  • Mfr. Part No. SFH620A-3
Each (In a Pack of 10)
Kr. 6,063(exc. VAT)
Last RS stock
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)
In Stock
Vishay, ILD213T DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 710-4887
  • Mfr. Part No. ILD213T
Each (In a Pack of 5)
Kr. 13,50(exc. VAT)
In Stock
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)
In Stock
OPB100Z Optek, Infrared Transceiver, Snap-In
  • RS Stock No. 880-1999
  • Mfr. Part No. OPB100Z
Each
Kr. 91,75(exc. VAT)
In Stock
EE-SX1081 Omron, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 788-4943
  • Mfr. Part No. EE-SX1081
Each (In a Pack of 5)
Kr. 24,194(exc. VAT)
In Stock
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)
In Stock
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)
Temporarily out of stock
IL612-3E NVE, 2-Channel Digital Isolator, 2.5 kVrms
  • RS Stock No. 148-767
  • Mfr. Part No. IL612-3E
Each
Kr. 96,32(exc. VAT)
In Stock
EE-SY1201 Omron, Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 237-9896
  • Mfr. Part No. EE-SY1201
Each
Kr. 45,52(exc. VAT)
In Stock
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)
In Stock
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)
Temporarily out of stock
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)
In Stock
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)
Last RS stock
Vishay TSOP34836, 36kHz IR Receiver, 950nm, 45m Range, Through Hole, 6 x 5.6 x 6.95mm
  • RS Stock No. 700-5305
  • Mfr. Part No. TSOP34836
Each (In a Pack of 5)
Kr. 9,13(exc. VAT)
In Stock
Hamamatsu, S2044 Visible Light Si Position Sensing Detector (PSD), Through Hole Metal
  • RS Stock No. 261-6263
  • Mfr. Part No. S2044
Each
Kr. 2 925,55(exc. VAT)
Last RS stock
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)
In Stock
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)
In Stock
Panasonic, APV1122A MOSFET Output Optocoupler, Surface Mount, 6-Pin
  • RS Stock No. 247-4141
  • Mfr. Part No. APV1122A
Each
Kr. 41,36(exc. VAT)
In Stock
Hamamatsu, G6854-01 IR InGaAs Photodiode, Through Hole TO-18
  • RS Stock No. 482-434
  • Mfr. Part No. G6854-01
Each
Kr. 1 063,12(exc. VAT)
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