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

5334 Products showing for Optocouplers & Photodetectors

1 of 267
In Stock
Hamamatsu Photonics S3071 Visible Light PIN Photodiode, Through Hole TO-8
  • RS Stock No. 482-420
  • Mfr. Part No. S3071
Subtotal (1 unit)
SGD289.86(exc. GST)
Last RS stock
Vishay, CNY17-3 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 919-0076
  • Mfr. Part No. CNY17-3
Subtotal (1 tube of 50 units)
SGD24.65(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
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
GP2Y0A21YK0F Sharp Reflective Optical Sensor
  • RS Stock No. 666-6564
  • Mfr. Part No. GP2Y0A21YK0F
Subtotal (1 unit)
SGD12.48(exc. GST)
In Stock
Isocom, 4N35 DC Input Transistor Output Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 597-302
  • Mfr. Part No. 4N35
Subtotal (1 unit)
SGD0.48(exc. GST)
In Stock
EE-SX4009-P1 CHN Omron Screw Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 788-4962P
  • Mfr. Part No. EE-SX4009-P1 CHN
Subtotal 2 units (supplied in a box)
SGD7.14(exc. GST)
In Stock
OPB365T55 Optek Screw Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 303-1192
  • Mfr. Part No. OPB365T55
Subtotal (1 unit)
SGD5.65(exc. GST)
In Stock
Optek Side Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 880-2015
  • Mfr. Part No. OPB840W11Z
Subtotal (1 unit)
SGD10.18(exc. GST)
In Stock
Broadcom, HCPL-0453-000E DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 450-947P
  • Mfr. Part No. HCPL-0453-000E
Subtotal 2 units (supplied in a tube)
SGD5.68(exc. GST)
Last RS stock
Skyworks Solutions Inc, 2-Channel I2C Digital Isolator 1 Mbps, 3.75 kVrms, 3.0/5.5 V, 8-Pin SOIC
  • RS Stock No. 753-2309P
  • Mfr. Part No. Si8602AC-B-IS
Subtotal 1 unit (supplied in a tube)
SGD9.63(exc. GST)
In Stock
Panasonic, AQY414EH DC Input MOSFET Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 352-5495
  • Mfr. Part No. AQY414EH
Subtotal (1 unit)
SGD4.61(exc. GST)
In Stock
Hamamatsu Photonics S5973 Infrared, Visible Light Photodiode, 65 °, Through Hole TO-18
  • RS Stock No. 124-7160
  • Mfr. Part No. S5973
Subtotal (1 unit)
SGD28.18(exc. GST)
In Stock
Isocom, 4N38 DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 168-8535
  • Mfr. Part No. 4N38
Subtotal (1 tube of 65 units)
SGD26.455(exc. GST)
In Stock
KRB011 Kingbright Surface Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 616-5670
  • Mfr. Part No. KRB011
Subtotal (1 pack of 5 units)
SGD17.32(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)
Unavailable
Renesas, PS2502-1 DC Input Darlington Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 453-7556P
  • Mfr. Part No. PS2502-1
Subtotal 1 unit (supplied in a tube)
SGD2.22(exc. GST)
In Stock
onsemi, MOC8050M DC Input Darlington Output Optocoupler, Through Hole, 6-Pin MDIP
  • RS Stock No. 806-6092
  • Mfr. Part No. MOC8050M
Subtotal (1 pack of 25 units)
SGD13.75(exc. GST)
Last RS stock
Vishay, SFH6343T Phototransistor Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 257-6855
  • Mfr. Part No. SFH6343T
Subtotal (1 unit)
SGD2.94(exc. GST)
In Stock
Optek Screw Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 880-2006
  • Mfr. Part No. OPB830W11Z
Subtotal (1 unit)
SGD10.50(exc. GST)
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