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

5476 Products showing for Optocouplers & Photodetectors

1 of 274
onsemi, MICROFJ-40035-TSV-TR1 Si Photodiode, Surface Mount TSV
  • RS Stock No. 185-9625
  • Mfr. Part No. MICROFJ-40035-TSV-TR1
Each
€62.21(exc. VAT)
Toshiba, TLP291(GB-TP,SE(T DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SO
  • RS Stock No. 144-5264
  • Mfr. Part No. TLP291(GB-TP,SE(T
Each (In a Pack of 50)
€0.234(exc. VAT)
Hamamatsu, S13948-01SB Visible Light Photodiode, Through Hole
  • RS Stock No. 180-2609
  • Mfr. Part No. S13948-01SB
Each (In a Pack of 5)
€2.596(exc. VAT)
Lite-On, LTV-817A DC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 691-2120
  • Mfr. Part No. LTV-817A
Each (In a Pack of 10)
€0.203(exc. VAT)
QRE1113GR onsemi, SMT Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 761-3984
  • Mfr. Part No. QRE1113GR
Each (In a Pack of 5)
€0.842(exc. VAT)
Isocom, H11L1 Transistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 453-1722
  • Mfr. Part No. H11L1
Each (In a Pack of 10)
€0.892(exc. VAT)
OSI Optoelectronics, OSD1-E IR Si Photodiode, Through Hole TO-18
  • RS Stock No. 183-7171
  • Mfr. Part No. OSD1-E
Each
€31.25(exc. VAT)
onsemi, H11F1M DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 456-383
  • Mfr. Part No. H11F1M
Each (In a Pack of 5)
€1.582(exc. VAT)
Isocom, TLP521 AC Input NPN Phototransistor Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 161-1026
  • Mfr. Part No. TLP521
Each (In a Tube of 100)
€0.235(exc. VAT)
Toshiba, TLP3061(S,C,F) DC Input Phototriac Output Optocoupler, Through Hole, 5-Pin PDIP
  • RS Stock No. 769-0293
  • Mfr. Part No. TLP3061(S,C,F)
Each (In a Pack of 5)
€0.832(exc. VAT)
GP2Y0A41SK0F Sharp, Reflective Optical Sensor
  • RS Stock No. 666-6568
  • Mfr. Part No. GP2Y0A41SK0F
Each
€10.14(exc. VAT)
Isocom, 4N35 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 597-302
  • Mfr. Part No. 4N35
Each
€0.91(exc. VAT)
Vishay TSOP4838, 38kHz IR Receiver, 950nm, 45m Range, 2.5 V - 5.5V, Through Hole, 6 x 5.6 x 6.95mm
  • RS Stock No. 708-5115
  • Mfr. Part No. TSOP4838
Each (In a Pack of 5)
€0.798(exc. VAT)
Vishay, CNY75B DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 145-1614
  • Mfr. Part No. CNY75B
Each (In a Tube of 50)
€0.302(exc. VAT)
Vishay, ILQ615-4 DC Input Transistor Output Quad Optocoupler, Through Hole, 16-Pin PDIP
  • RS Stock No. 708-5398
  • Mfr. Part No. ILQ615-4
Each (In a Pack of 5)
€3.028(exc. VAT)
OPB702 Optek, Through Hole Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 170-0777
  • Mfr. Part No. OPB702
Each (In a Bag of 25)
€3.337(exc. VAT)
CNY70 Vishay, Through Hole Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 708-5348
  • Mfr. Part No. CNY70
Each (In a Pack of 5)
€0.828(exc. VAT)
Hamamatsu, G6854-01 IR InGaAs Photodiode, Through Hole TO-18
  • RS Stock No. 482-434
  • Mfr. Part No. G6854-01
Each
€92.93(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)
€0.955(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
€32.96(exc. VAT)
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