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

5406 Products showing for Optocouplers & Photodetectors

1 of 271
In Stock
EE-SX670A Omron, Slotted Optical Switch
  • RS Stock No. 818-1491
  • Mfr. Part No. EE-SX670A
Subtotal (1 unit)
SGD42.51(exc. GST)
In Stock
Sharp, PC357N2J000F Transistor Output Optocoupler
  • RS Stock No. 826-4634
  • Mfr. Part No. PC357N2J000F
Subtotal (1 pack of 40 units)
SGD22.60(exc. GST)
In Stock
GP2A25J0000F Sharp, SMT Reflective Optical Sensor, Photointerrupter Output
  • RS Stock No. 146-0725
  • Mfr. Part No. GP2A25J0000F
Subtotal (1 bag of 100 units)
SGD598.50(exc. GST)
In Stock
Broadcom, ACPL-M61U-000E DC Input IC Output Optocoupler, Surface Mount, 5-Pin SO
  • RS Stock No. 693-6012
  • Mfr. Part No. ACPL-M61U-000E
Subtotal (1 unit)
SGD8.25(exc. GST)
In Stock
OPB810W51Z Optek, Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 908-7138
  • Mfr. Part No. OPB810W51Z
Subtotal (1 pack of 10 units)
SGD83.50(exc. GST)
In Stock
Broadcom, HCPL-7860-300E DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 818-8372P
  • Mfr. Part No. HCPL-7860-300E
Subtotal 1 unit (supplied in a tube)
SGD11.45(exc. GST)
In Stock
onsemi, FOD4208 DC Input Triac Output Optocoupler, Through Hole, 6-Pin MDIP
  • RS Stock No. 808-8742P
  • Mfr. Part No. FOD4208
Subtotal 2 units (supplied in a tube)
SGD12.69(exc. GST)
In Stock
onsemi, MCT9001 DC Input Phototransistor Output Dual Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 186-8559
  • Mfr. Part No. MCT9001
Subtotal (1 pack of 10 units)
SGD6.97(exc. GST)
In Stock
Panasonic, AQY272A DC Input MOSFET Output Optocoupler, Surface Mount, 4-Pin PDIP
  • RS Stock No. 373-1195
  • Mfr. Part No. AQY272A
Subtotal (1 unit)
SGD13.73(exc. GST)
Temporarily out of stock
OPB960T51 Optek, Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 908-7220
  • Mfr. Part No. OPB960T51
Subtotal (1 unit)
SGD6.37(exc. GST)
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
Subtotal (1 pack of 5 units)
SGD4.56(exc. GST)
Last RS stock
Broadcom, HCPL-M456-000E Optocoupler
  • RS Stock No. 910-8330P
  • Mfr. Part No. HCPL-M456-000E
Subtotal 5 units (supplied in a tube)
SGD14.16(exc. GST)
In Stock
KRB011 Kingbright, Surface Mount Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 616-5670
  • Mfr. Part No. KRB011
Subtotal (1 pack of 5 units)
SGD17.32(exc. GST)
Currently unavailable
onsemi, H11F1SR2M DC Input FET Output Optocoupler, Surface Mount, 6-Pin DIP
  • RS Stock No. 862-9274
  • Mfr. Part No. H11F1SR2M
Subtotal (1 pack of 2 units)
SGD5.80(exc. GST)
In Stock
Broadcom, HCPL-316J-000E BiCMOS/DMOS Output Optocoupler, Surface Mount, 16-Pin SOIC
  • RS Stock No. 547-4181
  • Mfr. Part No. HCPL-316J-000E
Subtotal (1 unit)
SGD7.84(exc. GST)
In Stock
Broadcom, HCPL-4504-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 547-3762
  • Mfr. Part No. HCPL-4504-000E
Subtotal (1 unit)
SGD3.88(exc. GST)
In Stock
Hamamatsu, S3071 Visible Light Si PIN Photodiode, Through Hole TO-8
  • RS Stock No. 482-420
  • Mfr. Part No. S3071
Subtotal (1 unit)
SGD289.86(exc. GST)
In Stock
onsemi, TIL117M DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin MDIP
  • RS Stock No. 808-0486
  • Mfr. Part No. TIL117M
Subtotal (1 pack of 25 units)
SGD14.45(exc. GST)
In Stock
Broadcom, HCPL-314J-000E DC Input Transistor Output Dual Optocoupler, Surface Mount, 16-Pin SOIC
  • RS Stock No. 496-5591
  • Mfr. Part No. HCPL-314J-000E
Subtotal (1 unit)
SGD7.36(exc. GST)
In Stock
Broadcom, HCNW2211-000E DC Input Logic Gate Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 696-1267
  • Mfr. Part No. HCNW2211-000E
Subtotal (1 unit)
SGD6.79(exc. GST)
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