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

5467 Products showing for Optocouplers & Photodetectors

1 of 274
TEPT5600 Vishay, 40 ° IR + Visible Light Phototransistor, Through Hole 2-Pin 5mm (T-1 3/4) package
  • RS stock no. 700-0779
  • Mfr. Part No. TEPT5600
Each (In a Pack of 10)
R 7.332(exc. VAT)
OPB365T55 Optek, Screw Mount Slotted Optical Switch, Phototransistor Output
  • RS stock no. 303-1192
  • Mfr. Part No. OPB365T55
Each
R 65.52(exc. VAT)
Vishay TSOP2238, 38kHz IR Receiver, 950nm, 45m Range, Through Hole, 6 x 5.6 x 6.95mm
  • RS stock no. 708-5562
  • Mfr. Part No. TSOP2238
Each (In a Pack of 5)
R 13.082(exc. VAT)
Isocom, ISP814X AC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS stock no. 453-0971
  • Mfr. Part No. ISP814X
Each (In a Pack of 10)
R 8.603(exc. VAT)
OPB815L Optek, Screw Mount Slotted Optical Switch, Phototransistor Output
  • RS stock no. 194-4024
  • Mfr. Part No. OPB815L
Each
R 62.86(exc. VAT)
Hamamatsu, S1223-01 Full Spectrum Si Photodiode, Through Hole TO-5
  • RS stock no. 415-5722
  • Mfr. Part No. S1223-01
Each
R 395.57(exc. VAT)
EE-SX1070 Omron, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS stock no. 219-2511
  • Mfr. Part No. EE-SX1070
Each
R 49.95(exc. VAT)
Optek, OPI1264C DC Input NPN Phototransistor, Photosensor Output Optocoupler, Through Hole, 4-Pin
  • RS stock no. 880-1952
  • Mfr. Part No. OPI1264C
Each (In a Pack of 2)
R 51.32(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)
R 16.548(exc. VAT)
OPB625 Optek, Through Hole Slotted Optical Switch, Buffer, Open-Collector with 10K Pull-Up Resistor Output
  • RS stock no. 455-0868
  • Mfr. Part No. OPB625
Each
R 52.53(exc. VAT)
OSI Optoelectronics, OSD1-0 IR Si Photodiode, Through Hole TO-18
  • RS stock no. 183-7158
  • Mfr. Part No. OSD1-0
Each
R 418.66(exc. VAT)
Toshiba, TLP361J(F) DC Input Triac Output Optocoupler, Through Hole, 4-Pin DIP
  • RS stock no. 760-3230
  • Mfr. Part No. TLP361J(F)
Each (In a Pack of 5)
R 8.478(exc. VAT)
OPB815WZ Optek, Chassis Mount Slotted Optical Switch, Phototransistor Output
  • RS stock no. 194-4030
  • Mfr. Part No. OPB815WZ
Each
R 109.23(exc. VAT)
Vishay, BPW21R Visible Light Si Photodiode, Through Hole TO-5
  • RS stock no. 708-2813
  • Mfr. Part No. BPW21R
Each
R 176.15(exc. VAT)
Toshiba, TLP350(F) DC Input IGBT Gate Drive, MOSFET Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS stock no. 186-022
  • Mfr. Part No. TLP350(F)
Each (In a Pack of 2)
R 49.88(exc. VAT)
OPB900W55Z Optek, Screw Mount Slotted Optical Switch, Transistor Output
  • RS stock no. 880-1983
  • Mfr. Part No. OPB900W55Z
Each
R 137.34(exc. VAT)
OPB802W55Z Optek, Panel Mount Slotted Optical Switch, Transistor Output
  • RS stock no. 908-7132
  • Mfr. Part No. OPB802W55Z
Each
R 105.25(exc. VAT)
Lite-On, 6N137-L DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
  • RS stock no. 691-2325
  • Mfr. Part No. 6N137-L
Each (In a Pack of 5)
R 13.744(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)
R 16.388(exc. VAT)
onsemi, QSE159 Photodetector Amplifier Unit, Through Hole Side-looker Package
  • RS stock no. 806-1365
  • Mfr. Part No. QSE159
Each (In a Pack of 10)
R 23.057(exc. VAT)
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