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

5265 Products showing for Optocouplers & Photodetectors

1 of 264
Broadcom, HCPL-7840-000E Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 547-4153
  • Mfr. Part No. HCPL-7840-000E
Each
TWD219.00(exc. GST)
Vishay, CNY74-4H DC Input Transistor Output Quad Optocoupler, Through Hole, 16-Pin PDIP
  • RS Stock No. 699-8170
  • Mfr. Part No. CNY74-4H
Each (In a Pack of 5)
TWD43.20(exc. GST)
Broadcom, AFBR-S4N44P014M Ultraviolet Photomultiplier, 420nm, Surface Mount 4.3 x 4.2 mm package
  • RS Stock No. 286-1283
  • Mfr. Part No. AFBR-S4N44P014M
Each
TWD874.00(exc. GST)
Renesas, PS2815-4-F3-A DC Input Phototransistor Output Quad Photocoupler, Surface Mount, 16-Pin SSOP
  • RS Stock No. 234-7090
  • Mfr. Part No. PS2815-4-F3-A
Each (In a Pack of 2)
TWD104.50(exc. GST)
Isocom, 6N138 DC Input Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 161-1147
  • Mfr. Part No. 6N138
Each (In a Pack of 10)
TWD28.80(exc. GST)
Renesas, PS2501-1-A DC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 453-7499
  • Mfr. Part No. PS2501-1-A
Each
TWD22.00(exc. GST)
OSI Optoelectronics, FCI-InGaAs-120L-FC InGaAs Photodiode, Through Hole
  • RS Stock No. 848-6266
  • Mfr. Part No. FCI-InGaAs-120L-FC
Each
TWD3,605.00(exc. GST)
Broadcom, HCPL-2531-000E DC Input Transistor Output Dual Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 547-3879
  • Mfr. Part No. HCPL-2531-000E
Each
TWD105.00(exc. GST)
Broadcom, HCPL-063A-500E AC/DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SO
  • RS Stock No. 174-4137
  • Mfr. Part No. HCPL-063A-500E
Each (In a Pack of 2)
TWD238.50(exc. GST)
TCST2103 Vishay, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 708-5553
  • Mfr. Part No. TCST2103
Each (In a Pack of 5)
TWD34.60(exc. GST)
Broadcom, ACPL-227-50BE DC Input Phototransistor Output Dual Optocoupler, Surface Mount, 8-Pin SO
  • RS Stock No. 178-1595
  • Mfr. Part No. ACPL-227-50BE
Each (On a Reel of 2000)
TWD14.30(exc. GST)
Renesas, PS2562L-1-A DC Input Darlington Phototransistor Output Photocoupler, Surface Mount, 4-Pin Gull Wing, SMT
  • RS Stock No. 234-7082P
  • Mfr. Part No. PS2562L-1-A
Each (Supplied in a Tube)
TWD28.70(exc. GST)
Vishay, VOS617A-4T DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SSOP
  • RS Stock No. 230-8399
  • Mfr. Part No. VOS617A-4T
Each (In a Pack of 25)
TWD6.80(exc. GST)
Broadcom, AFBR-S4N66P014M Visible Light 1-Element Photomultiplier, 420nm, Surface Mount 6.48 x 6.71 mm package
  • RS Stock No. 281-6143
  • Mfr. Part No. AFBR-S4N66P014M
Each
TWD2,110.00(exc. GST)
Sharp, PC367NJ0000F AC Input Transistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 146-0790
  • Mfr. Part No. PC367NJ0000F
Each (In a Pack of 20)
TWD23.80(exc. GST)
Broadcom, HCPL-7800-000E Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 547-4197P
  • Mfr. Part No. HCPL-7800-000E
Each (Supplied in a Tube)
TWD306.00(exc. GST)
TCST1103 Vishay, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 708-5538
  • Mfr. Part No. TCST1103
Each (In a Pack of 5)
TWD38.40(exc. GST)
Vishay, ILD615-2 DC Input Phototransistor Output Dual Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 145-1579
  • Mfr. Part No. ILD615-2
Each (In a Tube of 50)
TWD28.60(exc. GST)
onsemi, MOCD207M DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 671-1456
  • Mfr. Part No. MOCD207M
Each (In a Pack of 5)
TWD24.80(exc. GST)
OSI Optoelectronics, PIN-10D IR Si Photodiode, Surface Mount BNC
  • RS Stock No. 848-6288
  • Mfr. Part No. PIN-10D
Each
TWD5,567.00(exc. GST)
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