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
Last RS stock
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)
In Stock
Vishay, VEMD5060X01 IR Si Photodiode, Surface Mount QFN
  • RS Stock No. 161-2174P
  • Mfr. Part No. VEMD5060X01
Each (Supplied on a Reel)
€1.248(exc. VAT)
In Stock
GP2Y0A41SK0F Sharp, Reflective Optical Sensor
  • RS Stock No. 666-6568
  • Mfr. Part No. GP2Y0A41SK0F
Each
€10.14(exc. VAT)
In Stock
Hamamatsu, S5991-01 Visible Light Si Position Sensing Detector (PSD), Surface Mount Ceramic
  • RS Stock No. 261-6273
  • Mfr. Part No. S5991-01
Each (In a Tray of 2)
€80.975(exc. VAT)
Temporarily out of stock
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)
In Stock
OPB705 Optek, Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 455-0947
  • Mfr. Part No. OPB705
Each
€2.99(exc. VAT)
In Stock
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)
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
€32.96(exc. VAT)
In Stock
OPB702 Optek, Through Hole Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 455-0931
  • Mfr. Part No. OPB702
Each
€2.63(exc. VAT)
In Stock
OPB350W250Z Optek, Screw Mount Reflective Optical Sensor, Phototransistor Output
  • RS Stock No. 170-0783
  • Mfr. Part No. OPB350W250Z
Each (In a Bag of 25)
€7.972(exc. VAT)
In Stock
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)
In Stock
OPB815WZ Optek, Chassis Mount Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 194-4030
  • Mfr. Part No. OPB815WZ
Each
€5.35(exc. VAT)
Being discontinued
TCS34488M ams OSRAM, TCS3448 SMT Photoelectric Sensor, Digital Output 14, OLGA-8 package
  • RS Stock No. 494-538
  • Mfr. Part No. TCS34488M
1 Tape of 1
€4.02(exc. VAT)
In Stock
Vishay, BPV10 Near Infrared Radiation, Visible Infrared Radiation Si Photodiode, Through Hole 5mm package
  • RS Stock No. 815-1241P
  • Mfr. Part No. BPV10
Each (Supplied in a Bag)
€0.654(exc. VAT)
In Stock
OPB100Z Optek, Infrared Transceiver, Snap-In
  • RS Stock No. 880-1999
  • Mfr. Part No. OPB100Z
Each
€8.02(exc. VAT)
In Stock
TCRT5000 Vishay, Through Hole Reflective Optical Sensor, Phototransistor Output, PCB package
  • RS Stock No. 708-5017
  • Mfr. Part No. TCRT5000
Each (In a Pack of 5)
€0.946(exc. VAT)
Temporarily out of stock
OPB821S5Z Optek, Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 908-7150
  • Mfr. Part No. OPB821S5Z
Each
€5.93(exc. VAT)
In Stock
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)
Last RS stock
Vishay, ILQ621GB DC Input Transistor Output Quad Optocoupler, Through Hole, 16-Pin PDIP
  • RS Stock No. 708-5405P
  • Mfr. Part No. ILQ621GB
Each (Supplied in a Tube)
€3.146(exc. VAT)
Being discontinued
SFH 309 FA-4 ams OSRAM, ±12 ° IR Phototransistor, Through Hole 2-Pin 3mm (T-1) package
  • RS Stock No. 876-8710
  • Mfr. Part No. SFH 309 FA-4
Each (In a Pack of 25)
€0.388(exc. VAT)
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